These ebuilds come from http://wiki.cregion.ru/moin.cgi/CRG_Overlay.
If you have some problems, go to the official site first.
gdm : GNOME Display Manager ( http://www.gnome.org/projects/gdm/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a crg
For Paludis use this rsync : rsync://gentoo.zugaina.org/crg-portage
If you have a problem : ycarus(-at-)zugaina.org