Hi, I am new. I wanna post a special bike here, but I don't know how to manage....where to atttach a photo??? Thks a ton!!!

It is simple, just upload your picture to some sites like : photobucket.com or imageshack.us and then paste direct link to image between [ img] tags..
ie.

Code:

[img] DIRECT LINK TO IMAGE [/img]

Looking forward from you to share !