Get the files here:
Xperia Mini/MiniPro/Active/Live With Walkman
install-cwm1.cmd for Xperia Arc / Neo / PLAY
install-cwm2.cmd for Xperia Mini / MiniPro / Active / Live With Walkman
2.Enable USB Debugging on device
3.Connect your device using usb data cable
4.Follow on screen instruction
When booting your phone and when the 'Sony Ericsson' logo appear, press and release continuously the volume down button.
Once you are in the CWM recovery, use the volume keys to navigate upwards / downwards, the 'home' key to select, the 'back' key to go back.
I can't be held responsible if this Mod bricks your device or makes it explode in your hands! Use it at your own risk!