I simply downloaded the latest versions of Glib, GTK, ATK, and Pango. You'll need the bison and flex packages (get them in the rpmdrake interface). Use --prefix=/usr for everything, and it works out perfectly.
Once bison and flex are installed (you'll need the cds, of course), just extract glib, gtk, atk and pango. Glib needs to be installed first, a simple './configure --prefix=/usr' works fine here, make && make install. The same procedure follows for the others in this order: ATK, Pango, GTK. The files are at gtk.org.
Of course, there may be another solution, but this is what I did, and it worked.