SEP 11 can push client installs, but the systems do not become managed.

Hi,

I just inherited a small network to support that consists of Windows 2003, XP (32bit), and SEP 11.  The server can push out the client software fine.  I see it install on the workstations during the push.  For some reason, after the install is complete, the workstations still show up as unmanaged.  Any thoughts as to what I need to look for?