Put the RZR-0.1.4.img file on your sdcard. Then unmount your sdcard for storage. Make sure you have usb debugging turned on on your phone. then open a command prompt on your computer and issue the following commands:
Code:
adb shell
flash_image recovery /sdcard/RZR-0.1.4.img
sync
reboot recovery (just to see if you have the new recovery, you could just use "reboot" instead)
That should get it for you, it assumes you already have the flash_image installed on your phone. If not, then use this guide here with the proper modification for RZR-0.1.4.img:
Installing the SPRecovery Image Manually
good luck