I 've been try to put 10.6.8 SL on my AMD system over the past 2 months, and finally I did it with dual OS SL 10.6.8 and win7 Ultimate on single HD thought the guide of Devout from Insannitymac. So, first I would like to say thanks to Devout and all of the people out there to make this happend, and I would like to say this is the easiest way to put SL on AMD system.
Anyone got stuck with AMD system, go to insanitymac and follow this AMD Guide 10.6.8 – written by Devout.
Thank you, you guys are the best.

MB Asus M4A89TD PRO
CPU AMD Phenom II X6 1100T
RAm 16GB Kingston 1600mhz
ATI 6850