Akhan,
We had VFP 3, 5, and 6 and so we ordered the upgrade. However, the upgrade shipped in exactly the same box and with exactly(?) the same CD (CD contents, i.e. Installshield Limited Edition, etc.) as the full VFP 7 package one of our clients just purchased. So, based on my experience, I don't think there's any difference other than your obligation to have a prior legal version of VFP in order to qualify for the upgrade pricing.
Note that neither package had hard copy documentation. But my limited experience with the VFP7 help is that it is a step up from previous versions with the caveat that Examples don't seem to be included?
Regards,
Malcolm
What is the difference between upgrade and Full package? Does the upgrade contain Instashield and what else is missing in upgrade than full package.