Pay particular close attention to the cone method.
I used this method on some bees that had moved into a wall just a few days prior and it worked well.
I combined the bees with another hive as i never got the queen to come out. Although some others have had her come out too.
Because of the fact that they had not been in the wall but a couple of days, it was decided that once the bees stopped exiting, we would just plug the hole. We figured that there was not enough material( no brood no honey etc.) to worry about.
It was very interesting and alot of fun.
Main thing is to make sure you've got all other exits plugged as they will probably prefer one of them over the one with cone.
Good luck and have fun!-j
My Mom's other kids are smarter than me, but i'm not nearly as nice.