>I'm interested in getting certified in VFP. I have been developing in VFP and FoxPro for about 12 years. I remember some talk about certification in FoxPro Advisor a while back, but I was just at the Microsoft website and saw nothing on VFP certification.

Here is some info for you.
http://www.microsoft.com/traincert/mcp/mcsd/requirements.asp
http://www.microsoft.com/traincert/exams/70-156.asp
http://www.microsoft.com/traincert/exams/70-155.asp
http://fox.wikis.com/wc.dll?Wiki~CategoryExam70-156
http://fox.wikis.com/wc.dll?Wiki~CategoryExam70-155

As well, Cindy and I wrote a study guide for the VFP exams
http://www.hentzenwerke.com/catalogavailability/certfox6.htm
You can download some sample chapters here
http://www.hentzenwerke.com/samplechapters/sccertfox6.zip

> Can one become certified in VFP or is that contained under a broader category?

Well kinda. If you pass one of the two VFP exams, you become an MCP. If you take the two VFP exams, plus the 70-100 and an elective, you become an MCSD.