Print Text Messages iPhone

Here is the only way I know how. On the message screen, select edit. It will allow you to scroll up and down the page. Take a picture of the screen where the text is you want by hitting the home and power button at the same time. Email yourself the photo to your PC and then print the photo. A process, but the only thing I am aware of. If the thread is long just keep doing it section by section. Hopes this helps.
Custom PC 6GB RAM / Nvidia 280GTX Graphics/ 3.5TB HD Windows XP Pro iPad1-iPad2 64Gs-iPhone4-AppleTVx2-iTouch 4G