I've been able to upload pics..except it was acting all weird the other day. It would say that they failed, yet they uploaded...and it skipped by the "confirm screen" where you get to select captions for the newly uploaded pics...maybe double check your gallery and see if any made it through?
are you resizing them yourself? makes uploading go alot smoother.
Had trouble yesterday with unsized pics...once I resized them everything went smooth .. usually the unsized pics work fine It actualy crashed my browser (chrome) and cause me a bit of shit .... all good now