OllaCart Point of Sale (ocPOS) for osCommerce Easy to use, no changes needed to osCommerce files, no database editing needed. Installer takes care of needed database changes, files are completely separate. Formerly commercial, now GPL. The known issues/bugs are documented in README.txt As-is. No developer support available at this time. Attribute support, including a mode for QT Pro. Support: http://forums.oscommerce.com/topic/407813-ollacart-point-of-sale-for-oscommerce-ocpos/