Hi, Solenza

May I wonder what is your business?

Also, you have asked about smth to read about osCommerce. I usually find most accurate and up-to-date info at http://www.oscommerce.com/documentation

More of that browse here: http://www.oscommerce.com/community it is a page of osCommerce community (people who use, develop and maintain osCommerce solutions).

http://www.oscommerce.com/community/contributions is a page with 99% of free contributions for osCommerce. Why I mention free - because some companies develop commercial modules and add-ons. For example, we have Affiliate Program for osCommerce, Saferpay payment module, some more, and we sell them.

Hope this helps.

Cheers,

Nazar from Help4Hosters