Hope you have resolved your issue with the backup. Seeing that you've got that kind of a problem tells me that you have made some progress at least with somewhat running the CDC against SQL Server 2000. I am currently trying to set it up for evaluation.
Maybe you can advise me with how to resolve a problem I have. There is a clear need behind having to have CDC metadata tables in a separate schema (database) to the one I want to replicate. Regardless of how I set up the dedicated CDC user and DB I am not able to get the CDC to put those 3 tables whilst creating the very first CDC instance.
I tried getting in touch with IBM but they are not really able to help so far.
What was you experience with this? Were you able to separate the CDC tables?