Hello. I’m learning rigging with Jonathan Williams tutorial. He is useing there already done character, i wanted make rigging on my own manga girl, but i have a little problem. When i clicked on “Set parent to: with automatic weight” armature modifier dont added to my object. I tried add this manually , but it doesnt work, i cant see my bone’s in vertex group… My character was textured before and clothe’s was separated, is that any disturb for rigging? Sorry for english 
Hope you anderstand me:p below ss, how it look’s
http://imageshack.us/photo/my-images/341/riggin.jpg/
Yea, potentially problematic. This is why i started usin mesh deform cages.
You can also try adding groups and modifier your own.