Jivemecrazy

My shop is Oscommerce 2.2rc2 I have installed MVS1.2.3 (multi vendor shipping) several tangible producst will be shipped from different suppliers. I also sell digital downloads. I process payment with Paypal website payments standard. First problem is that the paypal payment module bypasses the [login to view URL] and therefore the MVS module does not update the vendors field, nor send out the email to vendors. I have confirmed this by processing payment with a differnt module and all works fine. I need the code for MVS merged with the payment module. Secondly, for orders that contain only digital products, I'd like to skip the shipping address checkout page. Thirdly, for orders that are digital and have no charge, I'd like to also skip the payment method page and the confirmation page and go straight to [login to view URL] The first problem is of greatest worth to me. Thank you.