To avoid issues like the "Red" case, I've placed tags into sprite names. you must NOT delete the tag unless it has the (P) tag, which is Public Domain. If it has a (C) tag, its copyrighted so you will need permission from me. If it is a [O] Tag, that means it is MINE AND MINE ONLY! This should sort things out. You can take Public Domain(as long as you give credit), You need direct permission from me to use Copyrighted, and you simply can't use the Owner tag.
No problem man, I'll be with you whenever you feel things aren't going well.