Welcome back judys. Sorry things have come to a head re sleep.
From my experience, the first night DS went to sleep in his cot and wasn't fed to sleep, he cried for 1.5 hours and it was awful but that was the worst of it. After that he either cried for a short time, or (as he does now) climbs up, rolls round etc and eventually falls asleep (lengthy but with no tears and minimal involvement from me). We did what most people on this thread have done, comforted in the cot. You may find if you try again tonight he may get the idea sooner and cry less.
On the other hand, you could cut yourself some slack, ignore everyone's "helpful" advice and carry on the way you are and try again in a few weeks when your DS is a bit older.
Was also going to mention that I recently bought a new sleep book - by Kim West and it's quite prescriptive about what to do but in a good way. She basically recommends sitting next to them and gradually moving the chair until you are out of the room...think it is over a period of 2 weeks. She also recommends full night weaning, as they all seem to! It's only now (DS is 10 months) that I feel okay with the idea of full night weaning.
I also get annoyed when people say that kind of thing Cos - and agree that either they have babies who would have slept well anyway, or they are happy to hear a lot more crying than I would. No one seems to think about the emotional needs of a baby when they talk about leaving a newborn to cry for hours.
Count am really glad things are improving for you! It doesn't sound smug at all, and we all know you have been through some rough times.
I am in napping hell today as DS has just had 2 half hours so far and is getting increasingly overtired. Going to try for another cot nap at one and if that doesn't work we are heading out in the rain with the buggy.
4madboys I find your posts really reassuring! It is good to be reminded that they will all sort themselves out and one day this will all be a distant memory...