Can't install GB rom

[xandor]

I'm having problems updating to GB. I've SBF'd back to 2.3.20 and re-rooted the phone. Downloaded the file from here and verified the MD5 signature. Everytime I try to update to GB, I keep getting "vailed to verify whole-file signature".

**Smacks head**

Figured it out -- forgot clockworkmod recovery. It's installing now.