Audiobook shop - my idea comming from Poland

Hi,
I want to present u my business idea. It took me 4 months to build (PHP and SQL code) this shop. What I want to highlight is the fact not to use already developed software for any serious business solution. At first I wanted to use some free software like osCommerce and it took me 2 months to understand that it is not enough flexible. What I mean is it doesn’t let the developer to easily modify the code, so the conclusion is try to develop your own code or just buy some and don’t waste your time.
Regards,

PS

If interested please take a look: audiobook shop