Where can I find resources for learning to do logical n-tier development with VFP?

A good start was "Building 3-tier C/S application in VFP" by Robert Green in Jan. 97 (kind of outdated?) on MS website but can't seem to find any other great resources. I just browsed through the VFP6 Enterprise Development book that I rec'd today but not enough resources are available about this subject.

I got some great ideas from a book "Professional Business Objects with VB5" but I want more specific resources related to VFP.

Any suggestions?

TIA
John.