vb net syncing google contacts

My contact addresses are in a mysql db. I want to sync them with my Google Gmail account. I programmed all the functionality with vb.net - unfortunately it is not working. I enclose the vb.procect. This is the easiest way to see and estimate the effort to make a running program out of the actual situation.

Basically I need (everything is already there):

-         a little form to control visually the functionality

-         input is a Google account and the connection info of the addresses

-         add, edit and delete the necessary Gmail data

This is it.

If this cooperation works, we can proceed. I need a couple of other small apps for my android phone which fetch information out of my mysql server.