>Look here:
http://www.microsoft.com/traincert/mcp/mcsd/requirements.asp.
> The two VFP exams (for VFP 6) are 70-155 and 70-156. There are no exams for VFP 7 or VFP 8. To become MCP you need to take only one exam.
I'd like to add that at the level of detail the exams go into, the important skills to measure would still be the same in VFP7 or VFP8.