I'm sorry Annie!!! we went through that with Z....but he didn't sleep all night in his swing, we co-slept and wanted him to be in his own bed/room before #2 comes along....
Honestly, it's going to take some time, tears, frustrating long nights.....but if you stick to it and continue to do the same thing everytime she cries when you put her in her crib, she'll learn and the habit will be broken and a new one created. this is what we did with DS...it took like 4 days for him to get used to his crib. DH helped me with it. Anytime he cried we would pick him up, cuddle/hug him, put him back down, patting his back and sometimes singing/humming as well.
It's a bit rough the first few times but it does get easier adn easier. each night he would woke up less and less and less. and now finally he sleeps thru the night.
other ideas- give her a baby massage, try a lullably cd or singing to her, trying a night light or one of those wombie bears?
Good luck and

i know what you are going thru, it's hard!!! hang in there- it'll get easier- stick to something...