Marketpress for Beginners

Hi all,
Well I am as much as a newbie as one can be - New to Wordpress and WPMUdev :slight_smile: - So I can use all the help I can get!!!

I am creating some sites with "Marketpress" and the "TT MarketPress FrontEnd" plugin. I am unsure on where to begin to setup the shopping cart or paypal for marketpress. I have done some searching on WPMUdev to see how to achieve this and I see topics on paypal chain payments, app ids, etc., but have been unable to put the pieces together. The more I read the more confused I seem to get.

Can someone out there point me in the right direction on how to properly do this process?

Thanks,
MJ