How to put it in?
1.Unzip it and you will see Lock.ogg and Unlock.ogg
2.Drag it to your SD card
3.Go to root explorer (Remember to change mount r/o to r/w
4.Go to the folder call sdcard at the root explorer
5.Find the 2 files and move to system/media/audio/ui
6.Replace it and set permission rw-r--r-- and done! You don't have to reboot your phone.
Note: Remember to backup your old Lock.ogg and Unlock.ogg incase you don't like this sounds.