I looked at your sample app which behaves properly and think I have thing's configred the same however I can't seem to find the problem. Any ideas on what may be wrong.

Also are parent-child-grandchild BO relationship's supported on one entry form?

Great Job so far!! I tried to use Mere Mortals and I guess I am just not that good of a developer

I really do like this Framework it reminds me of when I first started using Max Frame in VFP. I  

I was very eager when I head about Mere Mortals and then discouraged, but after playing with this framework I am excited about .Net once again.