I believe that you will most likely run into problem number 2 if it did fit, that the folder name you use on photobucket contain spaces. If I remember correctly the board software is allergic to them and refuse to show the avatars from the folders in question.
So to kill two birds with one stone I suggest this:
Change the album-name on photobucket to something without spaces which is also shorter than the current name. "Oots" or "OotsArtwork" are two possible candidates.
You can also create a new album if that works better.