
Yes, I recommend you uninstall everything and proceed in this order:
1) Install q3
2) Install 1.32 and 1.32c, pay attention to entering the correct path to your q3 dir
3) Install gtkradiant 1.4 from my link above
4) Move the mapmedia.pk3 to your baseq3 folder
5) start and set up gtkradiant (do again pay attention to entering the correct path to your q3 dir)