Swaddling is your first line of defense. Usually (can't say always) it provides a feeling of being held. Also, you may try to use a sleep positioner - also gives a feeling of being held.
When he sleeps in your bed with you, it could be that you're close to him and (if you're nursing) he smells the milk and is comforted by that. If that could be the case, maybe wrap him in a blanket that smells like you. If you're not nursing, the same idea about a blanket that smells like you could be helpful. When I say to try a blanket, I mean swaddle him with it - not loosely around him or on top of him.
One item my husband and I found to be invaluable was a "womb bear" - you can find them at Target or Babies R Us for about $20. It is a cute teddy bear that makes womb sounds and the duration it stays on is for about 45 minutes and turns off on its own. My little one still sleeps with hers on - it's a comfort thing for her, and she is already 20 months old! Usually people use it for 3 months or so.
Will he sleep in the bassinet during the day? You may try to put him in the bassinet for naps, just so he's more used to it.
In the end, it's SO important that you get some sleep as well as your son. 2 weeks is not very long since your body went through so much, and I know how exhausted you must be without the sleeping dilemma. It may be that you have to give up a few nights of good sleep to keep putting him in the bassinet to show him that he can sleep in the bassinet, but it's so hard to do that when you're already so tired. I am sure he'll cry a LOT - but he may tire himself out and discover that he will finally give in and sleep. Can't promise though...
Just a few ideas. It's so tough to figure out the little ones sometimes. I would talk to your pediatrician and they may have some great advice too.
Congratulations on your new baby. Good luck and sweet dreams to you all.