Not sure if this is what you are looking for, but this is a combination of Crash and Serverhacker code for the default.asp page. You need to have the hover colors set too.
With this setting I have the hover colors working and the entire cell turns into a clickable link, not just the category.
Response.Write "</td>" & vbNewline & _
" <td style=""cursor: hand"" onClick=""window.location.href='forum.asp?FORUM_ID=" & ForumID & "'"" class=""button"""
if ForumFType = 1 then
Response.Write " colspan=""4"""
end if
If strDisableHoverColors = "1" Then
Response.Write " bgcolor=""" & strForumCellColor & """ valign=""top"">