It sounds like you haven't actually moved your pics from your computer files to your Photobucket account. Adobe Photoshop Album is a seperate entity from Photobucket. Sounds like you need to reset your password, or correctly enter your password and get into your Photobucket Album, and upload those pics into the Photobucket site, first ... before you try and post them on here.
Whatever size your pictures are uploaded into Photobucket, is the size they will post as ... so if your pics are larger than 640x480 pixels, using the URL link, rather than the IMG link, is the route to go.
Of the four different address links, listed under each of your pics ... you need only be concerned with two of them. The "Direct Link" is the "URL" link that you should use, if you want to post a pic larger than 640x480 ... that's the link that will leave a highlighted address in your post, that when clicked on will open a seperate window with the picture at full size (whatever size you uploaded it to Photobucket). The "IMG Code" is the link you should use for posting an actual picture right in your message, and the size should be "Large 640x480" or smaller. A simple copy/paste method will transfer either of these links to your message box/post.
Don't even bother to use, or try to use, the other two links. The HTML Code link won't work on here (HTML is turned off on this site) ... the Email & IM link will post a URL link, but the window it opens is a full page, with your picture/ads/address info. The "Direct Link" URL link will open a seperate window, but only your selected picture will be shown.
As far as your password problem ... make sure you are using the proper letter case, when you type in your password. If I'm not mistaken, your password is case sensitive (ie - you can't use a small letter if the password calls for a Capital letter, or vice versa). If you can't get it to work ... follow the instructions to reset your password (which is right underneath the login blank).
If you continue to have problems, PM me and I'll try and walk you thru it.
... cp