If want the information that is in a form to go into the querystring you have to set the form method to 'get'. When you are using the the 'post' method you retrieve the information using:

request.form("fieldname")

Where the fieldname is the name you assigned to the control on the form. It is usaully advisable to use the post method if you can when sending information to a database, since a querystring is limited in size. And use the query string when you want to pass variable used for retrieving information etc.