So .. In the B/S section, I found that many of users are selling coded WordPress themes ! So .. How to code them ? I mean - some tutorial ? I want to learn how to code them, or how to code PSD file ( if I create theme in PhotoShop ) .. Can somebody help, with some guides or tutors ?
While I don't think it's the best, check out the WordPress tutorial over at www.wpdesigner.com (owned and operated by Small Potato). I used it as a point of reference for when I developed my own WordPress theme framework in conjunction with the WordPress Codex over at http://codex.wordpress.org
Before you even look at http://www.wpdesigner.com/ and http://codex.wordpress.org/ - you should have basic knowledge of: - XHTML (Wordpress uses it) - CSS - PHP They're fairly easy to learn but without at least a simple understanding, going from PSD to Template is going to be really tricky...
You don't need to fully understand PHP, XHTML and CSS to study Wordpress codex at "codex.wordpress.org". The examples are often for beginners. But if you really want to create a good Wordpress theme, start studying the source codes at "www.csszengarden.com". This should get you going and understand the basic principles. Learn from the beautiful code.
Yes, you don't need to fully understand them - but you "should have a basic knowledge" of them, otherwise you might run into unnecessary headaches.
HTML and PHP not so much, especially if you're just going to use the existing code. CSS on the other hand, does require a solid foundation of understanding, unless you're just going to be tweaking colors and fonts.