I know this isn't a help thread, but maybe try uploading it to TinyPic or another image host site? To upload to tinypic, go to tinypic.com, but you might want to go on a mobile device because of the ads and popups. Then, click on "Select an Image" and select an image from your folders. Then, select the size if you want to resize it. From there, click "Upload", and you should be greeted with either something that verifies that you're not a robot or a screen with the image and codes. For an avatar, copy the very bottom code, saying "Direct link for Layouts". On FH, select "I have my own Pic" and paste the code from TinyPic. It may take a few tries to change though.
Hope this helped a bit, even though this isn't a help thread o,o
Also, this is a fairly old thread. Try not to bump old threads xD