How would I repair permissions and rebuild kext from Snow Leopard to Leopard?

I've tried mkextmaker but I still can't get in, probably related to permissions.

Thx

---

 Snow Leopard 10.6.7  Gigabyte GA-P35-DS3P  Intel Q6600 @ 3Ghz  Corsair CM2X2048-6400DHX  Gigabyte HD5770 Silent Cell  Samsung SyncMaster 2494SW  ALC889a  Creative T5400 5.1  Maxtor 380215AS  Pioneer DVR-215D  Presonus Inspire 1394  KRK Rokit 5  Wacom Bamboo One 
 SL USB Guide => http://www.infinitemac.com/f57/guide...k-drive-t3705/ 

I use the same user name and password for both install so permission is not a problem.

U can use terminal

---

iDeneb v1.4 10.5.8 Vanilla
MB: Intel DG31PR (ICHx,USB,PS2 Fixed)
CPU: Intel Core 2 Duo E4500 2.20GHz
Video: PNY-NVIDIA GeForce 9800 GTX+ 512MB (Install with onboard Video, Add EFI String to boot)
Ram: Corsair 2048MB PC6400 DDR2
Audio: Realtek ALC888(ALC88X Fixed)
Net: Working out of box
HDD: 3 SATA / 1 IDE (Win Xp, Win 7, OSX86)
CD/DVD: LG -R, -R DL, -RAM, -RW, +R, +R DL, +RW

Snow Leopard install in progress.