Originally Posted by jerofld
I'm going to assume you rooted and installed the pre-release leak, so I'm moving your thread to the ATR forum for more specific answers. Thanks!
you dont need to be rooted to install it. although rumour has it it ups the flash count
you can use a custom lock screen like widgetlocker
alternatively if you are rooted there are themes in the s3 section of xda-developers and if you can get ones for custom lockscreens