Error conneting

Error conneting

We've got an .Net 1.1 asp.net application which was originally created to
use SQL Server 2005. The application uses Microsoft Application Block
database access, it's installed on a virtual machine with Windows 2003
Server, and the Database on another VM. We are now trying to migrate the
database to SQL Server 2008 R2 on Windows 2008 R2. When the application
runs, it gets the following error:
System.InvalidOperationException: The stored procedure
'StoredProcedureName' doesn't exist.
After a deep search, we found this page:
http://support.microsoft.com/kb/2706519/en-us
We installed the hot-fix as indicated, but the error remains.
--
Current configurations:
Web server:
Windows Server 2003 on VMware
Database server
Windows 2008 R2 on VMWare
SQL Server 2008 R2
Any ideas?
Thanks