I'd recommend posting a pic in this thread so others can advise you also.
To post the pictures in this thread you just log in, on the bar right under the BP.net logo click the “Gallery” tab, under the gallery tab click on “My Images” and there will be a tab that you can click that says “Upload Image” http://ball-pythons.net/gallery/upload.php
Once you have the image uploaded to your BP.net gallery you can then put them in a forum post by going to the pic in your gallery and right clicking and selecting "copy image location" and entering the image location information in the post using this BBC code:
[ URL="paste you image location here"][IMG]Also post your image location here[/IMG][/URL]
(with no space between [ and URL )
And another way you could do it is to upload the pictures to an online photo hosting site like photobucket and use the IMG BBC code with the image location to post them on the forum.
If you have already have some fuzzies go you can go ahead and feed them to him if he'll take them. If you are going to go out to get some to his food look for a prey item that is about as thick as (or a little bit thicker) than your BP's thickest part.
BP's can tolerate long periods of not eating, so you shouldn't be too concerned about fattening him up right away. My recommendation is just getting him back on track with a regular weekly feeding schedule that includes appropriately size prey item(s). Before you know it he'll be up to nice healthy weight.