xproductcatalogonly

Setting this to Yes stops anyone from ordering from your site, but they can still view products. This is useful if you want to use VPCART to generate a catalog.

xdisplayprices

Setting this to No means that all products are displayed and can be ordered, but no prices are displayed.

Xpriceloggedinonly

If this is set to Yes, only customers who are logged into your site will be able to see the product prices and be able to order them.