I will help u out , here u go . What you do first is open the 3d's max and import the modell into this.
Than , select a modellpart, and press the M button on ur keyboard. U should get a material editor up . than u see lot's of circles. Select one of them, and scroll down and press on Maps , There, select diffuse color, and click on the none button
Like this
When u click on that none button and have selected diffuse color u should get a new window, there click on bitmap (the one all way up) and select ur bitmap . After that u click on these :
Than just hit F9 or F10 or F11 forgot which was the render button , heh.