On May 9, 2008, at 1:37 PM, Fred Johanson wrote:

But it is an incremental,just not on a TSM schedule.

It needs to be an unqualified Incremental, which runs to completion,
for the Last Backup timestamps to be updated.  I would check the
actual client backup log, partly to verify that the action was on the
Windows volume you expect it to be.

   Richard Sims