Crystal Report does not run on windows 2003 server

Hi Everyone

i m new to this forum. i have problem regarding crystal reports.

we have windows 2000 advanced server installed on our server and we have an application in ASP + SQL server

we also have pre formatted reports designed in Seagate crystal reports version 7. The Problem is that these reports were running f9 on win 2000 server but does not run on win 2003 server. pls help that which version of crystal reports will work with win 2003 server or how i can fix this problem.

thanx