1) update to 3.1.3 then jailbreak with Jailbreakme.com here's the thread about it.*You must login or register to view this content.
2) My suggestion install Whitedoor Custom firmware... *This will increase the speed of ur iPod as long as u dont install winterboard... *You must login or register to view this content.
3) u can stick with the 2.2.1 nd jailbreak with quickpwn.*