well i have a nice gif avatar, uploaded it but it does not animate... what should i do? plus i tried to install a couple of mods for my sg player mode, and everytime i start the game it freezes at the end of the loading bar, and says updating. (i deleted de META-INF)

2 questions in one more efficient.

i dont think its possible. even if it was yal probably crash every 2 minutes.

Try hosting from an off-site host, such as tinypic. It may be an issue with gd2 which the site uses to resize images.