help please!

hey guys.. i haven't used my computer in a while. but now that im using it again, i chat and adium don't work. when i start the program, it just says the program crashes and if i wan to send an error report or reopen.. you guys know wut i'm talkin about. and i tried updating it, but i can't even open the program. i tried uninstalling adium and installing it again but it still is messed up. same wit ichat... help please guys!