I jail broke my ipod touch and I was happy with my result. I then upgraded to the new firmware 3.0 and my ipod was no longer jail broken. I know what to do in order to jailbreak my ipod as it is now, but I I like having both cydia and installer which I can't by using redsn0w. I could really use some assistants with this problem. Please help me.

Unfortunately, Installer has been abandoned, so you can no longer download programs from it . But to downgrade, all you need to do is go into DFU mode, and shift-click your 2.2.1 firmware.