You could do something like this:
"<table align=""center"" border=""0"" cellPadding=""0"" cellSpacing=""0"" width=""760"">" & vbNewLine & _
" <tr>" & vbNewLine & _
" <td valign=""top"" width=""468"">" & vbNewLine
%><!--#include file="google_adsense_code.asp"--><%
Response.Write " </td>" & vbNewLine & _
" <td align=""center"" valign=""top"" width=""290"">" & vbNewLine & _
" <table border=""0"" cellPadding=""2"" cellSpacing=""0"">" & vbNewLine & _
" <tr>" & vbNewLine & _
" <td align=""center""><font face=""" & strDefaultFontFace & """ size=""" & strDefaultFontSize & """><b>" & strForumTitle & "</b></font></td>" & vbNewLine & _
" </tr>" & vbNewLine & _
" <tr>" & vbNewLine & _
" <td align=""center""><font face=""" & strDefaultFontFace & """ size=""" & strFooterFontSize & """>" & vbNewLine
call sForumNavigation()
where google_adsense_code.asp is the code provided to you by Google.