I've had no problem running the commands to get this set up. But the recovery doesn't boot.
D:\android-sdk-windows-1.6_r1\tools>fastboot.exe flash recovery recovery-RA-nexus-v1.5.3.img
sending 'recovery' (3550 KB)... OKAY
writing 'recovery'... OKAY
Then power off and boot to flashboot again. Pick bootloader, recovery. See the quad-color nexus X and lock icon, then after just a moment, the android mascot with an exclamation point in a triangle. At this point I can't do anything besides pull the battery.
I've checked the md5 of my .img and it's right. I don't know how to get a recovery.log to post.