Setup Trial and Paid Membership

Hi,

I have used Standard Wizard for Memberships.

1. I Created two Access Levels a. Premium Member. b. Free Trial

2. I created Two Subscription Plans a. Premium b. Free

Under Premium Subscription i selected Finite-30 Days- $9.99

Under Free Subscription i selected Finite-15 Days - $0.00 and next below that Premium Finite-30Days-$9.99

And Now in Front End.

When i go to Subscription Page, It shows two Subscriptions 1. Premium for $9.99 ans 2. Free

Till Here its good.

But when i click Free Subscription. It shows Registration Form, next it takes me to payment page for Free Subscription.

There it shows only Paypal Subscribe button. But i have activated Free Subscription Gateway and Paypal single.

How can i make my Users to select Free Membership and then be able to upgrade. ?