1. Acquire root via ioroot
2. Download and install the attached APK
3. Select "Install Recovery"
4. Select "Reboot Recovery"
Your phone will appear to be booting normally, but it should boot into recovery fine.
I can not guarantee the contents of the attached APK to not be of malicious intent, as I am not the creator. From my experience and others it has provided a legitimately recovery. I am not liable, you are.
You are not able to write to system. This means no flashing of ROMs, restoring of system nandroids, etc. Be careful!