B.S.
I had this same problem with my daughter. She started in my bed then, a pallet on the floor. It really takes baby steps, you are doing the right thing, you can't just expect them to start sleeping in their own bed in their own room when they have always slept with mom and dad. Once my daughter was on the floor, I started waiting until she would fall asleep and then put her in her own bed, if she woke up I told her she could sleep on the floor. She finally got to the point that she would go a few days a week without waking up in the middle of the night, I always told her how proud of her I was and how she was such a big girl. Eventually she would go to her own room and lay down to go to sleep. When we started this we would sit in her room with her until she would fall asleep, me and my husband would take turns reading, singing, rubbing her back, and stomach until she fell asleep. It will be a hard time of adjustment, but definatly well worth it. Please try this way, I feel that it is a good way to get them to adjust, I know it may not be as soon as you want but this way your children still feel secure throughout this transition. If you have any questions please feel free to ask.