Just start the TSM client  on the target machine with the virtualnodename
parm.

 dsm -virtualnodename=name_of_source_node

You will be prompted for the password of the source machine (the one that
backed up the files).
You must also select a "restore to" destination, even if you are restoring a
WIndows C: drive to a C: drive, (because the UNC names of the source &
target machine drives don't match.)

That's about it... but remember if this is a WIndows machine, you can't
restore the stuff in PROGRAM FILES unless you also restore the registry,
which you normally can't do to a different host....