Multipart Form Processing

i have created a registration page containing a form than sends username password to an asp processing page. If the user exists it sends the user back to the registration page with server.transfer command otherwise it adds the new user to the database as expected.

Anyhow I now want to add an upload feature to the registration page (using pure-asp). The example I used says that the form Enctype property should be set to mulipart/form-data.

Now when I add a new user via the registration form, the processing page for some reason assumes the user is already registered (BUT IS NOT IN DATABASE) and the server.transfer code is executed ? sending the user back to the registration page.