My laptop has K50IN-SX004L markings so i think its a different model than mine, can you give me your specs, you can check mine from my signature. I am running in 64bit mode, i havent had any problems regarding charging, switching from battery to power adapter and although your kext for the battery worked fine, i prefer the superhai`s version of AppleACPIBattery The ALC662 is still "in the works" and for the Atheros WiFi i hate to say but i think that you need to replace it with a working wifi card (Check my signature again) The Atheros is recognized in 10.6.2 but its not scanning or finding any networks.

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MSI P5Q / C2D E8400 @ 3.0 Ghz / 8GB DDR2 800Mhz / PCIe ECS 9600GT 1Gb / ALC1200 / Windows 7 / OS X 10.8
ASUS K50IN (SX004L) / C2D T6400 @ 2.0 Ghz / 4GB DDR2 800Mhz / nVidia G102M 512Mb / 15.6" HD/LED / ALC662 / Dell 1490 802.11g / Windows 7 / OS X 10.8