How can I find a manual for A1143 Airport Extreme and iPad2 interface?

II had a friend give me a A1143 for wireless acces (bluetooth?) for my iPad 2 and would like set up a printer, mouse and other devices to my iPad 2. I don't have a manual for it and would like to find comments on what I should look for and the level of difficulty I can encounter.. These are my first apple products.