Hey guys I'm new to this android hacking scene but I've finally managed to do it after doing near enough everything the wrong way lol
I am also using the vodafone 32b UK phone (well its my sisters really :P) and I also used the same 'CyanogenMod' guide to do what I wanted (root/custom roms at last!)
Before i go any further though... are you all wanting to downgrade to simply install custom roms etc.. or is it for different reasons?
If its for different reasons then I have no idea on how to downgrade but for the other thing then I can probably help you out! I won't waste my time typing it out yet though if its not what is needed..