>Is there any additional ADVICE anyone who has taken the tests can give me?
Get a good night' sleep! Really, the tests are long.

>My major concern is about questions about other products that can be used with VFP such as Microsoft Transaction Server and Visual Source Safe. As I don't use either of these apps where I work and also not much COM stuff, I'm thinking this is going to be my downfall. How much of that kind of stuff is on the test??
Hard to answer any of these questions because of the NDA.

>What have I gotten myself into?
Just make sure to drink some coffee, but not too much?

>And does the little light REALLY go out when I shut my refrigerator door????
That depends on you OS platform. Good luck!