Please Help!

I've looked everywhere, and I sure it's not in memories, but I can't figure out how cell shaded or how to add shadows to manga images, is what I'm trying to get at, Manga_colors  used to have tut for it sorta but I can't view it, anymore :(
 and I've  trying forever to find a good tut for it, and I'm just really frazzled by it, so if theres a simple enough tut out there, that explains it, thank you soooo much! PS. Is there such thing as the retouch tool in cs2? or pro 8, because it's in  pro 7