VLD Personals Script

I am using the VLD Personals dating script and it seems to have a problem with the 'upgrade' feature. When you click on 'Upgrade' it just takes you back to the homepage. I need to have this setup correctly so it will take the user to the 'upgrade' page, where it will offer them the choice of packages as setup in the admin, and then take them to paypal to process the payment. Please only bid if you have experience with this script. Thanks,