You can either install the GPMC to see all the settings that are configured
on your GPO's, use ADUC to run an RSoP on XP clients only to see what
settings are being applied, you can use "secedit" command on a 2k pc to see
the settings configured, and finally you can your "gpresult" command from an
XP machine to see the applied GPO settings. Good luck!
GPMC = group policy management console, must be installed on an XP or
Windows 2003 machine. You need a Windows 2003 server licence to use it
legally on any number of machines. GPMC can be used to produce GP reports on
any OS from Windows 2000 upwards.