Recovering from cvs remove

[Carlos]

Hello,

A user just removed all files (and committed the change). I guess the
culprit was some IDE he was using, but anyway:

How can I undo this change?

Almost all files in the repository were removed (they are in the
Attic). I can do a "cvs co -D '3 hours ago'" and recover them, but how
do I put them back into the repository without losing their history?

I barely know how to use CVS, except the basic commands :(.

Thanks.