I would go with what they both said. If it's on your computer though, use tinypic.com and upload it from there. (use direct link) Then just do the same as Queen said :]
You have to put the link to the picture (direct link if you're using photobucket) in the background image spot in the story title section. And the adjust the first number in the padding spot until it fits. I usually start with 500.
If it's on your computer though, use tinypic.com and upload it from there. (use direct link)
Then just do the same as Queen said :]