should I take a MCP or MCSE or MCAD

should I take a MCP or MCSE or MCAD
Hi ,

I am running a small sized software company. I am a pro in Visual basic 6.0. I develop database applications using access and crystal reports. I did my UG in B.Sc with physics. I have no degree or certification in Computers. I am now in the Idea of winding up my software company and get into some company as a programmer .

I am getting job interviews but after telephoninc interviews and things they reject on the basis that I dont have a computer degree. So I decided to get a microsoft certification on VB.NET.
I would like you guys to advise me on the following.

1)Can Microsoft vb.net certification earn me a job (Is it that hot)

2)If yes then please tell me which exam should I take. I am terribly confused about those
MCAD/MCSE/MCP things.

Please help me take a decision thank you.