[cvsnt] import statement just hangs

[siegfried]

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I've been checking out and checking in code to existing repositories and
cvsnt v2.5.02 has been working fine. However, the following statement just
hangs:

cvs -d :pserver:siegfried:topsecret at CVS_WXS/CVSNT/WXS import -Cd . root
trunk

I was able to log in using the login command.

Incidently, when I do cvs --help import I see the second parameter is vendor
tag. What is the vendor tag? 

And what is the release tag? I think the release tag shows up when you do a
branch.

Thanks,
Siegfried