building a green laser module from a 808 diode

I emailed www.O-Like.com and asked if it were possible to build a green laser with their laser crystals and they said yes and directed me here, so can any one here tell me how to build a green laser module using crystal to get a very strong mw green laser.

Decent parts, and some practice. Rip apart some DX greenies and learn with your hands and eyes, or do a ton of reading over at Sams and hope for the best.