Trbl w/ site moved from old server with CF 5 to newer with CF 8

We have have a co-location client with an ecommerce site on their server.

They had a server configured with Windows Server 2000, SQL Server 2000 and Cold Fusion Server 5 for 6-7 years.  Recently we began having trouble with it. 

It’s having periods where it reboots, where CF restarts, etc.

We have ruled out hardware issues.  Cloned it to a different box and the problem went with it.

As part of the remedy, we’ve upgraded/updated their server.  We were going to do a new install of every piece of software and as such it was decided to go with all updated versions.  The new server now has Windows Server 2008, SQL Server 2008 and Cold Fusion Server 2008.  Until the new server is ready to go live, the old server (which still has problems) is the server where the website is live. 

The web files have been copied over.

IIS has been set up (the main site as well as the secured site for checkout).

The SQL databases as well as users and logins have been copied over.

The ODBC connections in Cold Fusion have been configured.

The custom tags in Cold Fusion have been configured.

We are currently getting an error when we click on any of their product categories.  The exact same web files work on the server with the older software.

Hopefully you can  see this.  I know it’s hard to read on a low contrast monitor.

Any observations, thoughts or suggestions would be much appreciated.

Thanks,

Katie