I need some help on the Classic Expansion Pack 5.1

[JELLYpWnzU]

hello i need some help im using riivolution for gecko users, i've tried over about 9 times to get this working, i have named all my .rels to st_custom01 etc. and my stages to STGCUSTOM01 etc. and added all the codes needed, but i don't get any stages ive heard your supposed to do something with a xml could someone explain what i have to do to make this work?