How do I ge rid of the shipping, in marketpress ecommerce store

I just want to get rid of the need for shipping information, since I am only using this plugin for payment of classes. Is it possible? Or should I just use a different plugin that fits these need:

Ability to use different payment processors, paypal, google checkout, etc.

View products

Buy/shopping cart

Recieve a editable email, since i then want the future customers to finish regestration.

Able to use the theme I'm currently using.

I have put no shipping in the wordpress/marketpress store settings, However it is still thier.

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