I have nearly figured it out using parts of the script on this forum post 

You can generate your own XSLT and format the fields as you desire. Once you have it where you want, add the following:

1) Just below the header information where the script begins naming parameters, I added the following:
  <xsl:param name="param_search" />
  <xsl:param name="param_searchpostback" />
  <xsl:param name="param_ispostback" />

2) After the "orderDirection" and "orderType" variable scripts I added:
   <xsl:variable name="search">
    <xsl:choose>
      <xsl:when test="$param_ispostback">
        <xsl:value-of select="$param_searchpostback" />
      </xsl:when>
      <xsl:otherwise>
        <xsl:value-of select="$param_search" />
      </xsl:otherwise>
    </xsl:choose>
  </xsl:variable>

3) Drop down to the code string <xsl:template match="/udt:UserDefinedTable"> and add:
    <xsl:variable name="searchColumns" select="//udt:Fields[udt:Searchable='true']/udt:ValueColumn" />
    <xsl:variable name="filteredData" select="udt:Data[(contains(/udt:UserDefinedTable/udt:Context/udt:UserRoles, concat('|',udt:User,'|')) or (/udt:UserDefinedTable/udt:Context/udt:IsAdministratorRole = 'true')) and (contains(*[name()=$searchColumns][1],$search) or contains(*[name()=$searchColumns][2],$search) or contains(*[name()=$searchColumns][3],$search) or contains(*[name()=$searchColumns][4],$search) or contains(*[name()=$searchColumns][5],$search)or contains(*[name()=$searchColumns][6],$search)or contains(*[name()=$searchColumns][7],$search)or contains(*[name()=$searchColumns][8],$search)or contains(*[name()=$searchColumns][9],$search)or contains(*[name()=$searchColumns][10],$search))]" />

"User" is a field in your list that the filter will search for a match of your security roles. You can name it whatever you want but make sure it matches the field name in your UDT.

4) Find and replace any instance of "currentData" should be changed to "filteredData"

Now, the last thing I need to figure out is how to format the list of security roles to be placed in the "User" field. Right now, I have it as text and if I have a role of "Subscribers" listed in the field it will allow all Subscribers to see the row of data. But if I have "Subscribers, Registered User" it searches for a role that matches both, not either one.

Any help would be appreciated.