I never had this problem. Open a photobucket account and then you should be able to upload photos. Use the upload photo tool on photobucket, select the pics you want to upload (from your computer), and then its pretty much done.
When you download your pics from your camera be sure to save them in a designated folder i.e. "my pictures" folder in the "my documents" folder on your desktop or wherever else you may have it stored.
I'm not sure if I made any sense there, but I hope I did and I hope I was able to help.