hi... oak_the_man, flip360, & ronovar...

i've lion installed on my K40in CPU T4200 @2000 dual core and i've update to 10.7.1.
there are working :
battery - this
display - nvenabler64.kext so display will detect as unkwon but work perfect
reboot,shutdown,lan,usb,keyboard - ronovar extra k70inmac
scrolling - i use reverse scrolling application
card reader - i use oak_the_man kext for 10.6.8 (hehehe... it is only cosmetic)

there are not working :
sleep - i just disable all of the sleep function i don't really need this!
sound - i tried solution from ronovar to use kext k50in & appleHDA with bin patched but it is not work at all
edit work perfect with solution below...
trackpad - i tried AppleACPIPS2Nub.kext and ApplePS2Controller.kext but nothing happened, i tried this for trackpad but nothing change..

can u help me out to enable the sound? this is the most important for me because i can use usb mouse to substitute trackpad.
how about voodooHDA for alc662? can i use this kext? Should i delete any kext before i apply voodooHDA?

update : i'm using voodooHDA 10.6.2 then sound driver is detected but the sound is messed up! now i'm try to using usual way to copy k50in, HDA enabler, & appleHDA 10.6.2.. hope work flawlessly.... still incorrect n problem with noise... so i browse & found new next for voodooHDA here

so my sound work perfectly.... thx

thanks for any suggestion & solution... CMIIW... i really need correction.
cheers...