my son is 16 1/2 months old and he still doesnt 'sleep through the night'....
have you tried a white noise machine? when my son was born we had to run the vacuum the first 2 months, then we found "for crying out loud" a cd that has a recording of a vacuum on it!
night terrors are the worst, my son had 2 when he was around 9 months old, and it was horrible. he would just scream and scream and scream like something was desperatly wrong, would not be consoled, and really wouldnt be awake. i used to have them when i was a baby too and it is genetic, so i was kinda prepared. as far as they go, theres nothing really that you can do, except to hold baby and make sure baby doesnt get hurt, although i have heard that if your baby wakes up at a certain time period, like you said an hour after bedtime, if you wake her up before that, i cant remember how long, maybe 20 minutes before that, it is supposed to prevent the night terror. but otherwise theres not much you can do, and im so sorry about that, but i know how you feel, as do many many other parents.
what kind of meds are you giving her before bed and what for? and what kind of milk are you giving her? breastmilk or whole milk? maybe if you dont give her anything ... i breastfeed my son still, so he wakes up by 5 am and wants to nurse usually... however, if you want that to stop, you have to stop giving her something. i dont know... if you give her the bottle at night, then make dad wake up with her. once she gets the idea that mom isnt coming or the milk isnt coming, she should stop waking up for it.
also, now that spring is coming, if you get her outside before bedtime, that fresh air should help her sleep better. it works for my son, he always sleeps better when hes had lots of fresh air.
www.askdrsears.com is a great resource, and dr sears has many books availabe for parenting. he has a whole book on sleep! so you may want to check them out, you can find them used on amazon for as little as 1$!