should work, but there is no sleepenabler released for 10.6.6 yet.
try a different way. replace /Extra/ with the Extra-folder i uploaded. copy the extensions to /S/L/E/ an install the bootloader to /
take a loke under Systempreferences>Network. is there the Wireless card shown?
I haven't found any fixes for apps like garageband. I also would like to use them fully on my netbook. but no solutions yet:(