I really appreciate your help, but when I pasted your code into my skin.css file, there was no change.  My login link looks exactly like it did before.  Maybe I pasted it into the wrong place?  I don't know.  I'm stuck.

The content of my skin.css file is below.  Can you advise me as to how to fix my login issue?

/*========================================================*/
/*  Universal                                          */
/*========================================================*/

/* Style For HTML PAGE                   */ html { height: 100%; }
/* Style For HTML BODY                   */ #body { margin: 0; background: #7F7F7F; }
/* Setting Text Throughout the skin      */ table, tr, td {font-family: tahoma; font-size: 11px; margin: 0;}
           p {font-family: tahoma; font-size: 11px;}
/*========================================================*/
/*  Design Elements                                    */
/*========================================================*/

/*-- outermost table of skin -Standard      --*/ .OuterTable { width: 90%; height: 100%; background: url(page_bg_l.gif) repeat-y top left #FFF; align: center; }
/*-- outermost table of skin -Admin         --*/ .OuterTableAdmin { width: 90%; height: 100%; background: url(page_bg_l.gif) repeat-y top left #FFF; align: center; }
/*-- cell containing logo                   --*/ .LogoTD { text-align:center; vertical-align: middle; padding: 0 0 15px 20px; width:253px; height:122px;} 
/*-- cell containing login and register     --*/ .LoginTD { text-align:right; vertical-align: bottom; padding: 0 28px 16px 0px; height:70px; width:420px;} a.LOGIN_object:link, a.LOGIN_object:visited, a.LOGIN_object:active { color:#DADADA; }
/*-- cell containing login and register - 2 --*/ .LoginTD2 {  vertical-align: top; color: #777; padding: 6px 30px 0px 0px; text-align:right; } a.LOGIN_object:link, a.LOGIN_object:visited, a.LOGIN_object:active { color:#DADADA; }
/*-- cell containing search                 --*/ .SearchTD { text-align:right; vertical-align: bottom; padding: 0 30px 9px 0px; height:70px; width:420px;}
/*-- cell containing language               --*/ .LanguageTD { text-align:right; vertical-align: top; padding: 5px 25px 0px 0px; height:52px; width:420px;}
/*-- cell containing menu                   --*/ .MenuTD { width: 199px; vertical-align: top; padding: 4px 0 0 0; }
/*-- cell containing panes                  --*/ .PanesTD { width:100%; vertical-align: top; padding: 4px 14px 0 10px; }
/*-- header middle cell                     --*/ .HederMidTD { text-align:left; vertical-align: middle; padding: 0 40px 0 0; height:122px; width:100%;}
/*-- top header section                     --*/ .TopRow { background:  url(header_bg.jpg) repeat-x top left; height: 83px; padding: 0; }
/*-- topleft header section                 --*/ .TopRowLeft { background:  url(headerlogo.jpg) no-repeat top left; height: 159px; width:100%; padding: 0; vertical-align:top; }
/*-- header table                           --*/ .HeaderTable { height: 159px; width:100%; padding: 0; }
/*-- topright header section                --*/ .TopRowRight { background:  url(header_bg_r_login.jpg) no-repeat top right; height: 159px; width:100%; padding: 0;}
/*-- topright header section                --*/ .TopRowRight2 { background:  url(header_bg_r.jpg) no-repeat top right; height: 159px; width:100%; padding: 0;}
/*-- bottom footer section                  --*/ .BottomRow { background:  url(footer_bg.gif) repeat-x top center #EBEBEA; height: 76px; padding: 0;}
/*-- bottomleft footer section              --*/ .BottomRowLeft { background:  url(footer_bg_l.gif) no-repeat top left; height: 76px; padding: 0;}
/*-- bottomright footer section             --*/ .BottomRowRight { background:  url(footer_bg_r.gif) no-repeat top right; height: 76px; text-align: right; vertical-align: top; padding: 36px 37px 0 37px; }
/*-- middle content section                 --*/ .MiddleRow { background:  url(page_bg_r.gif) repeat-y top right; padding: 0 10px 0 35px; }
/*-- applied to invisible objects           --*/ .Invisible { visibility:hidden; }

/*========================================================*/
/*  Content Panes                                      */
/*========================================================*/

/*-- top inside content pane       --*/ .PaneTop { width: 100%; padding: 0 7px 0 7px;}
/*-- left content pane             --*/ .PaneLeft { padding: 0 7px 0 7px; width: 33%; }
/*-- content pane                  --*/ .PaneCenter { padding: 0 7px 0 7px; }
/*-- right content pane            --*/ .PaneRight { padding: 0 7px 0 7px; width: 33%; }
/*-- bottom inside pane            --*/ .PaneBottom { width: 100%; padding: 0 7px 0 7px; }
/*-- bottom menu content pane      --*/ .PaneMenuBottom { width: 100%; padding: 5px 5px 0 5px; }

/*========================================================*/
/*  Tokens                                             */
/*========================================================*/

/*-- login and user token idle         --*/ .LOGIN_object, a.LOGIN_object:link, a.LOGIN_object:visited, a.LOGIN_object:active, .USER_object, a.USER_object:link, a.USER_object:visited, a.USER_object:active { color: #777; font-family: tahoma; font-size: 11px; font-weight:bold; text-decoration: none; }
/*-- login and user token hover        --*/ a.LOGIN_object:hover, a.USER_object:hover { color: #444; font-family: tahoma; font-weight:bold; font-size: 11px; text-decoration: none; }
/*-- date token idle                   --*/ .DATE_object, a.DATE_object:link, a.DATE_object:visited, a.DATE_object:active { color: #777; font-family: tahoma; font-size: 11px; text-decoration: none; }
/*-- date token hover                  --*/ a.DATE_object:hover { color: #444; font-family: tahoma; font-size: 11px; text-decoration: none; }
/*-- terms privacy and copyright       --*/ .FOOTER_objects { color:#777; font-size: 11px; }
/*-- terms privacy and copyright links --*/ a.FOOTER_objects:link, a.FOOTER_objects:visited, a.FOOTER_objects:active { color:#777; font-weight:bold; text-decoration:none; }
/*-- terms privacy and copyright hover --*/ a.FOOTER_objects:hover { color:#444; font-weight:bold; text-decoration:none;  }

/*========================================================*/
/*  Text                                               */
/*========================================================*/

/*-- most of the text on site          --*/ .normal, .Normal { font-family: tahoma; font-size: 11px; color: #444; }
/*-- most of the bold text on site     --*/ .NormalBold { font-family: tahoma; font-size: 11px; font-weight: bold; color: #444; }
/*-- red text on site for errors       --*/ .NormalRed { color: #C50000; font-family: tahoma; font-weight: bold; font-size: 11px; }
/*-- subheadings - mostly in admin     --*/ .SubHead { font-family: tahoma; font-size: 11px; font-weight: bold; color: #555; padding: 0; }
/*-- headings - mostly in admin        --*/ .Head { font-size: 11px; color: #555; background: transparent; font-weight: bold; padding: 0;}

/*========================================================*/
/*  Links                                          */
/*========================================================*/

/*-- default links visited and active  --*/ a:link, a:visited, a:active { color: #666; font-family: tahoma; font-weight: bold; font-size: 11px; text-decoration: underline; }
/*-- default links hover               --*/ a:hover { color: #444; font-family: tahoma; font-size: 11px; text-decoration: underline; }
/*-- normal  links visited and active  --*/ a.Normal:link, a.Normal:visited { color: #666; font-family: tahoma; font-weight: bold; font-size: 11px; text-decoration: none; }
/*-- normal  links hover               --*/ a.Normal:hover { color: #444; font-family: tahoma; font-size: 11px; text-decoration: none; }
/*-- admin button-link style           --*/ a.CommandButton:link, a.CommandButton:visited, a.CommandButton:active { color: #6A6A6A; border: 1px solid #ABABAB; background: #EFEFEF; padding: 2px 3px 3px 4px; font-family: tahoma; font-weight: bold; font-size: 11px; text-decoration: none; height: 20px; }
/*-- admin button-link style hover     --*/ a.CommandButton:hover                                                 { color: #6A6A6A; border: 1px solid #868686; background: #DFDFDF; padding: 2px 3px 3px 4px; font-family: tahoma; font-weight: bold; font-size: 11px; text-decoration: none; height: 20px; }
/*-- search button in search form      --*/ .SearchButton { background: transparent; padding: 13px 21px 4px 13px; cursor: hand; font-size:1px; margin: 0 0 0 0px;}

/*========================================================*/
/*  Forms                                              */
/*========================================================*/

/*-- default form elements      --*/ select, input { font-family: tahoma; font-size: 11px; color: #333; }
/*-- textbox                    --*/ .NormalTextBox { color: #333; padding-left: 4px; line-height: 12px; font-family: tahoma; font-weight: normal; font-size: 11px; }
/*-- textbox container          --*/ td.NormalTextBox { padding: 0; margin: 0; background: transparent; visibility: invisible; border: 0; }
/*-- textbox used for search    --*/ #dnn_dnnSEARCH_txtSearch.NormalTextBox { height:19px; background: transparent; width: 152px; color: #666; padding: 4px 0px 0px 5px; border: 0px solid #FFFFFF; cursor:text;}
/*========================================================*/
/*  Main Menu and Module Menus                         */
/*========================================================*/

Quick and dirty method:  View the rendered source and find your login link... it will probably look like this:

<a id="dnn_dnnLOGIN_hypLogin" href="**someURLhere***">Login</a>

with that, you can define an ID in your CSS with:

#dnn_dnnLOGIN_hypLogin {color: #C0AC89;}

and extend that further with:

#dnn_dnnLOGIN_hypLogin a:link {color: #C0AC89;}
#dnn_dnnLOGIN_hypLogin a:active {color: #C0AC89;}
#dnn_dnnLOGIN_hypLogin a:visited {color: #C0AC89;}
#dnn_dnnLOGIN_hypLogin a:hover {color: #00FF00;}

More involved method:

You can also add the following to your skin.xml file between the <Objects> tags (before uploading) and this will allow you to define the CSS Class for the login manually:

  <Object>
    <Token>[LOGIN]</Token>
    <Settings>
      <Setting>
        <Name>CssClass</Name>
        <Value>MyVeryOwnCSSClass</Value>
      </Setting>
    </Settings>
  </Object>