Dts 2000 packages with SSIS

I need help,

I've got 51 pretty complex Dts packages that are running on Sql 2000. I'm
trying to make them run on Sql 2005 without at first migrating them with the
migration wizard, since i know that many of them cannot be migrated.

I'm using the "Execute DTS 2000 Package Task Editor" to make them run in an
SSIS package, some of them are running fine, but many of them, especially
those with a "Data Driven Query Task" are returning this error:

Error: System.Runtime.InteropServices.COMException (0x80040427): Execution
was canceled by user. at DTS.PackageClass.Execute() at
Microsoft.SqlServer.Dts.Tasks.Exec80PackageTask.Exec80PackageTask.ExecuteThread()

After many research on the web, i've reinstalled the Sql 2000 tools on the
Sql 2005 server, but i'm still receiving the same error. Also, i've tried to
repair the "Microsoft Sql Server 2005 backward compatibility" in the
Add/remove program of the Sql 2005 server without much success.

For your info, i've installed the hotfix Build 2153 on both the server and
the client and i'm still having the same problem......

Any idea?

Thanks.What happens when you just run them via dtsrun and/or the DTS designer?|||

They run fine without any errors!