Gnome works just fine in PCLOS. Double check that you have all of the Gnome2 files you need. Keep in mind though that PCLOS is primarily a KDE distro.
Open Synaptic and use search to find gnome2, select this and it will add the dependencies and then apply. You will have gnome.
Try looking through the wiki:
PCLinuxOS New User Guide: The PCLinuxOS New User Guide Wiki
Or the Official PCLinuxOS forum:
Just saw your thread in the PCLOS forum. Did you get the problems worked out?