Expiring files on an inactive client

[Julie Phinney]

I have an old, no-longer-backing-up  client, whose backups we need to keep
in case of a disaster.   We don't need to keep all the inactive versions of
files, though.   Since it doesn't connect to the ADSM server any more,  I
don't know how to expire those inactive versions.
Does anyone know how I could do that?    If I connected as that node, with
another machine?    I wouldn't want to affect the current active files
though.
Thanks,
Julie