Animations are set as "enabled", but in fact they are disabled. konqueror-3.2.0-beta2 used to work.
Animation seems to work here
animated gifs only play one time. it's a known bug and is filed with the kde people. http://bugs.kde.org/show_bug.cgi?id=72953
should be fixed in 3.2.0 (there's a patch for it in portage)