Using cferror

I am running CF7on windows 2003. I am trying to use in my application.cfm file and it never calls my template I give it. here is my call. Here is the error the page has. 13:00:28.028 - Expression Exception - in D:\Inetpub\wwwroot\AgentSite\FunctionPages\AccountFunctions.cfc : line 841

Using cferror to catch 404's

Hello, Has anyone had any luck with using cferror with type="request" to catch 404 errors ? --- OUR NEW SITE IS NOW LIVE Visit our new website at http://www.rawnet.com/ and race around the beautiful Bracknell streets at http://xmas.