Wow, that is an awesome way to do flames. Thankyou alot for posting this up, as I will definatly be needing this soon!
If anyone wants different types of flames, let me know. My brother is a soon to be sign writer and a very good artist, so I can get him to draw out some different flame designs, like Tribal, classic or streetrod style flames (the rough ones). It will take me a week or so to post them as he is very busy with a sign writign job at the moment & a TAFE course.