well, the good news and bad news is that this is NORMAL. dont expect any different. you are going to get a lot of advice here that says to just let her cry it out blah blah - but that is going to go against your insticts. you have to follow your heart and follow your instincts. your daughter needs you, and thats not manipulation, thats building trust. every time you respond to her, you are allowing her to have a need and you are letting her know that you are there for her even if its inconvenient for you.
www.askdrsears.com has lots of good info about sleep.
heres a suggestioin or 2. white noise white noise white noise. a fan, radio playing static, a cd, whatever it takes. most babies like classical music - it puts them right to sleep. in our house we got a cd called 'for crying out loud' and it has 8 tracks of white noise on it. we ended up making a cd of 8 tracks of the vacuum selection. we play it every night all night long. (our son is 23 months old) and since my husband is a light sleeper, he is as addicted to it as our son is.
also, a bit of routine might help. something that wont help ? feeding solids or formula in order to keep her full... that will disrupt sleep more because digestion will keep her awake. you want her to have eaten something light before bed, but nothing complex, nothing heavy, nothing too filling.
anyway, go with your heart. do what gets you all the most rest, and just respond in the way that best shows your child the love you have! never do anything that makes you cry ! LOL