I've been tasked with creating a new skin for a 2.x portal. I've done it before but have been working with 3.x and 4.x since their releases and it has been ages since I've messed with 2.x. I tried just using as skin that was developed for dnn4 but I get an error.

I checked the 2.x documentation and I don't think that I'm doing anything wrong. I upload the skin package with no problem (no errors) but when I try to preview it (or apply it) just the existing skin shows and I get  the following url:

http://MyPortal.com/Default.aspx?tabid=310&def=errormessage

when I check the log I get the following. Please help! They want this done like yesterday! THANK YOU!

ModuleId: -1
ModuleDefId: -1
FriendlyName:
ModuleControlSource:
FileName: D:\Inetpub\ClientPortal\admin\Skins\Admin.ascx.vb
FileLineNumber: 107
FileColumnNumber: 25
Method: DotNetNuke.Skins.Admin.Page_Load
DatabaseVersion: 2.1.2
AssemblyVersion: 2.1.2.33143
PortalID: 17
PortalName: PepsiAmer03
UserID: 295
UserName: Admin
ActiveTabID: 310
ActiveTabName: Site Settings
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
ExceptionGUID: 5b38cf23-6e24-493e-b64f-ab067da7551f
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
Message: Object reference not set to an instance of an object.
InnerException: System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Skins.Admin.Page_Load(Object sender, EventArgs e) in D:\Inetpub\ClientPortal\admin\Skins\Admin.ascx.vb:line 107
TargetSite:
StackTrace:
HelpLink:
Source: