Ok, now I have another problem.
I attached my sprites to a reply, but then I realized that one of the sprites was slightly off. So I deleted the post with the intent of fixing the problem and re-uploading it. However, my computer now won't let me edit the file, nor even open it, and I can't re-upload it either. It instead says "Contact the file owner or an administrator to obtain permission." What should I do now?
Sorry to be bothering you so much.