Hmm, I would say restart your iPod. Or hold the sleep/wake button and the home button at the same time and wait for the Apple Logo to appear. Then let go of BOTH of them. Wait to you get the "Slide To Unlock" and retry.
If that doesn't work, you can always restore it, using 1.1.1 software and go to Jailbreakme.com and go through the whole process again.
Sorry if I couldn't help you
that much.
