Share 'Sales on ning network, inserting paypal into picture description.'

I've read the terms and services, cannot find anything that denies direct sales from ning network. So we would like to investigate using the network for direct sales. A biz store to be exact. would like to set up a store site on ning, with social component for our customers and friends and future clients. would like to add paypal button to description of every picture. The ning site, out of t...