Tell your friend he's an ass for giving a (stressed) plant to someone without the skills to properly care for it. Least he could do is to give you one that's healthy, and a heads-up on care and feeding. (have you tried asking 'your friend' how to care for them?)
Having said that...look at the grow log section. Many different ways to acheive the same goals. (altho some are definatelly better than others) See which set-up's are closest to yours, and learn from their experience. You can also try looking thru the cannabis FAQ's.

If it's an emergency, and she's fading fast...completely fill out the troubleshooting form, and include pix if possible.

Being a social misfit...posting etiquite isn't my strong suit, and I'm not too sure where to look it up. Stinky should be getting up pretty soon tho, lol.