SMS 2003 Client Installation Problem

I am running a Windows 2003 Server with Microsoft SMS 2003sp1. The client machine is a Domain registered Windows XP sp2 machine.

I have configured the Push Installation methods, however, when I try to install the client software on the XP client from the SMS Manager, nothing happens. The wizzard runs, but yet the client still shows up as detected, but no Client or Assigned.

I have tried everything, even reinstalling the associate WMI files, which was the fix in SMS SP1.

Anybody any ideas how I can get around this?

Regards
NC