Poosnu here is what we did - hopefully some of it will be relevant to your situation:-
We started by deciding on a set bedtime routine. Nothing fancy or hard to recreate when we were away, just making sure that we did the same thing every night. For us, this means bath (during which DS has his last breastfeed - his own addition to the routine!), then into his own room with a low lamp. We sing him the same little song as we put him in his babygro and sleeping bag, and then read his bedtime book (ours is Goodnight Moon, because it is very hypnotic!). As soon as the book is finished we say night night, turn off the light, give him a last kiss and cuddle and put him down in his cot.
The first few nights we stayed in the room with him and repeated the same phrase over and over again. Ours is 'Night, night, little man' - or a soft shhing if he's upset. If he became overwrought then we'd pick him up for a cuddle, but put him back in his cot as soon as he calmed down.
I think it took about half an hour and lots of cuddes to get him to sleep on the first night. Every night thereafter showed a slight improvement, until we are now able to say 'night night' and leave him alone in the room. We listen on the monitor and he croons to himself for ten minutes or so before dropping off to sleep.
In the night, we do exactly the same thing - come down and say 'night night, little man'. If he is hungry, he continues to cry, if not he will drop off to sleep. He's now started to settle himself (with more crooning) for many of those night wakings so, although I tend to wake up, I don't have to go down.
After the third night we made a point of not taking him out of his cot until morning, and then making a big deal of it being morning - i.e. opening the curtains and saying Good morning in a cheerful voice. He seems to have got the idea because he no longer wakes up at the crack of dawn, and usually we're up at a much more reasonable 6 am 
With the night feeds, we started by letting him feed for as long as he liked, but only every three hours. After he had started to settle for three hours between these feeds, we started reducing them by a minute a night. As I mentioned in an earlier post, by using this method we've managed to get him down to one feed a night. I should make it clear that we've only felt comfortable doing this since we started weaning - I've noticed that he eats a lot more (breastfeeding and puree) during the day since we started reducing the night feeds, so I'm happy that he's getting enough food. I'm sure he'd let us know if he wasn't!
Hope that helps. Sorry if it's a little rambly - it's past my bedtime 