Hello, new to this... well kind of.  I see from the first post that this must be installed using stock recovery.  So i powered on holding volume keys, now wonder what to select.  I have used Gummy, CM9, and several on past phones, i just dont want to cause a real problem.  When in doubt, ask someone that knows!  Thanks everyone.
Sry, should have mentioned, I had Safestrap 1.09 and disabled, then got to a point where my phone was booting right into the GB system.  I never messed with the non-safe system, restored my backup that I did upon installing Safestrap... I didn't know if it changes the build prop, don't even know what the build prop does or is... 
I am trying to put .215 on, following all instructions skipping 1 because i never changed the non safe... 
Im a bit confused and can't really use my computer - it's a dinosaur, XP box with 512 and is running like it's 10 years old.
Thanks again.