hey, I hope things have improved since you last wrote. I have a near 11 month old who like you used to be a great sleeper until she learnt how to stand in the cot. Chloe won't let me leave the room until she is asleep otherwise she just stands up and cries. Some nights it takes 5 mins to settle her and I am out of the room other night we are not so lucky. This is what we have been doing and most nights it works......
Depending on what time chloe wakes up from her afternoon sleep determines what time she goes to bed at night. She used to always go to bed at 7pm but now that she does not keep still during the day we are finding that she is ready for bed at 6:30. Since putting her to bed earlier we have found that she is drifting off to sleep a lot quicker. We do our bedtime routine (bath,bottle story etc) , I put her in her sleeping bag, cuddle her and tell her it is time to sleep. Put her in her cot awake and just keep laying her down until she gets exhausted that she stays down. After I have layed her down I keep my hand on her back as a reward for staying down. As soon as she tries to get up I take my hand away and then lay her back down (hand is quite firm on her bag) after about 20 seconds of laying my hand on her I take it away etc I have tried sneaking out of the room only to find that 20 seconds later she up again. So now I stay in there until she is asleep. I think by her knowing that we are not leaving her to cry and that she trusts us that if she needs us we will respond may help her to sleep through the night, who knows!!! If she does wake during the night we do exactly the same thing, some night easy other nights not so easy. If I find she begins to play in her cot then I walk straight out of her room to let her know that it is not play time. When i leave she cries but more of a come back mum cry rather than an emotional cry. I only go back in when i have had enough of listening to her, lay her down and remind her it is time to sleep. By this stage she is so buggered she goes to sleep. It is such a difficult stage when they are crawling or standing up in their cot, I have written numerous times on other forums asking for advice and everyone says it is a phase they go through which keeps me sane, even though it is so frustrating.

I have also found that if I am really tired during the day and I can't be bothered with the constant standing then I settle her in the pram and she sleeps so well. Might be just the cozyness of the pram, who knows?

Best of luck!