ok
1st - buy a hosting - place on serwer
2nd - buy a domain name - Your www adres
3rd - pay to a webmaster - someone must compile a datebase, managment interface and layout of Your store
or buy a CMS - content managment system dedicated to an e-store, and buy layout too
4th - register Your firm - You know: taxes and other stuff like this
5th START SELLING
Wellcome on the best polish forum