I've been having some trouble in installing the ClockWorkMod through the link on the XDA forums you provided.
I tried both installing the custom ZIP file through xRecovery, and copying the .tar file to system/bin with all the permissions. However, I can't access ClockWorkMod.
Pressing back repeatedly invokes xRecovery, while tapping on the screen as SE appears does nothing.
Any idea what could be wrong? Or perhaps I'm doing something wrong?