I was trying to get rid of mouse acceleration on my Mac when i found this on the internet http://www.idyll.org/~n8gray/code/ Then i installed the hacked file... and now My wireless mouse and keyboard arent connecting to my comp... I try re connecting with Bluetooth preferences and it still doesnt work! is there a way i can restore my OSX system files without reinstalling my OS? How do I get rid of what that program did?

(Im VERY new to mac any help would be great)

first of all you didnt read tha instructions to the hack
correctly. The hack only applies to a usb mouse, not a
bluetooth mouse, so theres the problem.
If you read the instrustions it tells you that the intall
script will make a backup of your existing
IOHIDFamily.kext in:
/System/Library/Extensions/
IOHIDFamily.kext.backup

So If you hate the hacked version you can get the old one
back with:
sudo rm -rf /System/Library/Extensions/
IOHIDFamily.kext
sudo mv /System/Library/Extensions/
IOHIDFamily.kext.backup \
/System/Library/Extensions/IOHIDFamily.kext
sudo rm -f /System/Library/Extensions.* # These
are cache files
# Now reboot

If this dont work and im not sure if it will then you will
need to reinstall your OS.

Is that in Script Editor? how do I enter those commands?
YES i am stupid I didnt follow the directions and I dont
understand macs.

press shirt-command(apple key)-G, and type in the file
extention.