Moved File Vista no Longer Works

Hi All

I have just moved our installation of FV 3.5 from a Win2k Server to a Win Server 2003 (64bit). 
All the sites, virtual directories and settings are spot on (I hope).
I have set IIS to run in 32bit mode.
The problem I am getting is if I browse to the file vista default.aspx file, or any other aspx file for that matter, all I get is page cannot be found 404 error.
I put a test index.asp file in the filevista vitual directory and that displays fine when I browse to it.

Help, as I am under pressure to sort this?

Fixed it, yay!

It was the .Net web service extension wasn't enabled.

Here is the MS KB article http://support.microsoft.com/kb/315122
Turns out when you do a new server IIS install it only serves static content by default.