Personally, I've found a remedy to the posting pictures problem:
Move from Photobucket to imgur.
Before, it took 5-10 minutes to load a 1-3 pictures, and loading more pictures caused the 503 Error. Nothing of that with imgur, it all flows smoothly now.
Maybe if you're paying Photobucket something you can get service. But if you're using it for free, it's the worst one around, really.
-Z