PLEASE FOLLOW THESE IMPORTANT SETUP STEPS.
!) Login, go to members area. Next under the My Account tab at bottom left click on manage account. Next complete invoicing address and direct payment settings.So when you sell you can get paid via paypal.
2) Under selling section on left click on prefilled fields/global settings.Complete all that applies to you,all is optional except for direct payment and offline payments these are manditory. Thats it your all set to sell and get paid and buy from other sellers.