Here are my Horizontal theme for Gaim's Guifications plugin.
Just sets "IM Message", "Invited", "Name Spoken", "Topic Changed" and "Warned" event, as they are the only feature that I use.
$ sudo apt-get install gaim-guifications wget
$ mkdir -p ~/.gaim/guifications/themes/
$ wget http://zwnj.org/proj/guifications/horizontal-1.0.tar.gz -O - | tar -zx -C ~/.gaim/guifications/themes/