well i went to the apple store only yesterday quizzing them about this and i dont know how much the guy there actually knew but he said the only way to install SL was over an existing leopard install, so if you want a fresh install what i recommend you do is install Leopard onto your external drive and then dont do any updates or anything and then just install snow leopard over that external leopard drive, doing this all via your internal 10.5.8 drive, then put in the necessary files e.g. kexts, chameleon, dsdt and whatever else you need then restart your computer and try booting from your external, if that is successful, go back into your 10.5.8 install make a .dmg image of your SL drive, then boot the install disk and do a format of your internal drive and restore the SL image you created to your internal drive, add Chameleon to it and then you should have a working SL install on your internal lots of steps but the only way i could think of

---

iMac ::: Mac OS X 10.6.1 ::: Intel Core2Duo 2.93GHz ::: NVIDIA Geforce GT 120 256MB ::: 4GB DDR3 RAM

Milanca Project ::: Mac OS X 10.6.1 Retail ::: Vanilla Kernel ::: Intel Core2Quad Q6600 2.4GHz ::: NVIDIA GeForce 8600 GT 256MB ::: 4GB DDR2 RAM ::: GIGABYTE GA-EP35C-DS3R