It's just a matter of trying PNG format images <!-- s:) --><img src="{SMILIES_PATH}/icon_smile.gif" alt=":)" title="Smile" /><!-- s:) -->, I'll try it and see what happens, right now I get some errors while starting maps with TGA format images something like:
"Can't create texture x.TGA" and the skyboxes aren't displayed at all <!-- s:? --><img src="{SMILIES_PATH}/icon_confused.gif" alt=":?" title="Confused" /><!-- s:? --> .
I'll try changing them to PNG and see what happens. BTW, scen, you could add them to your ebuilds if you want <!-- s;) --><img src="{SMILIES_PATH}/icon_wink.gif" alt=";)" title="Wink" /><!-- s;) -->.