earlgray a couple of things. First, don't panic, this too will pass. I thought I was never going to get my 18mo to go to bed easily and started doing a bedtime routine at five weeks. I thought it was going to take an hour and a half forever. It doesn't. By 12 weeks it was down to an hour and now I can do it in 20 minutes. that's what I keep reminding myself when I'm trying to settle DD2 who is 8 weeks!
Neither of mine were mad keen on the moses basket to begin with although, I think actually they weren't mad keen on being put down.
My view is never to put down solidly asleep. Mine are two very different characters but if I put them down deeply asleep, they would wake screaming at the end of that sleep cycle (after about 40 minutes), in my view, because they couldn't remember going to sleep where they were waking up.
I do the following, bath, then bring them into my room and get them into the gro-bag. Turn off the light (I have a little night light on under the bed so I have enough light to see what I'm doing), feed until they are very sleepy. Wind her, then put her into the basket. The first few times you do this she will scream. Pick her up and see if she wants a bit more milk and repeat. With DD2 I also threw in a bit of shush-patting (hold her in the crook of your arm, pat her back with the hand underneath her while saying ssshhhhh, sssshhhhh) until she calms) although that made DD1 furious. When she's calm put her back in the basket. If she grizzles or fusses a little, leave her, don't actually pick her up until she's properly crying. With DD1 it took about four nights, with DD2 it took more like 10 for it to work. DD1 slept through from 13 weeks (and I mean 7 to 7). DD2 is currently waking once a night although is then up for 90 minutes which isn't ideal.
In the daytime, I confess DD2 sleeps where and when she can as I'm running around after DD1 and her main nap tends to be in the pram in the front room. DD1 did nap in her moses basket eventually - I used to use the hairdryer for about 10 minutes to get her to go to sleep. She has never been a good day time napper and would only ever reliably nap for one sleep cycle. She was doing three short naps a day until 6 months but didn't start doing them properly until about 13/14 weeks. Most of the books will tell you good daytime sleep leads to good night time sleep. IMHO it's the opposite but that's on a sample of two so hardly scientific!
One last thing - I have a friend who basically co-slept for six months and then popped her DC into the cot. They didn't even give a backward glance. It may be that you just need to ride this out and she'll let you know when she's ready. DD1 went into her cot at 18 weeks. I just had a feeling one night it was the right thing to do, and off she went.
Good luck!