This is part of what is written there:
Upgrade from SQL Server 2000 DTS
If you are an existing SQL Server 2000 DTS customer, one of your first questions might be how you would go about upgrading to SSIS. There are a couple of different options, including using the Migration Wizard, performing a manual migration, or even leaving your packages alone and running them using the Execute Package task. Each of these options is briefly explored in this section. ...
Also you may follow this URL as well: http://forums.microsoft.com/MSDN/Sho...68086&SiteID=1