(adsbygoogle = window.adsbygoogle || []).push({}); This is just for the iPad but I think you can use this for an iPhone/iPod Touch.
I have an iPad and this is what I did to jailbreak it.
THESE ARE MY OWN INSTRUCTIONS

1st: You should update your firmware to 4.2.1 firmware if you don't have it already...Find this file: iPad1,1_4.2.1_8C148_Restore.ipsw and put in on your desktop

2nd: Get redsn0w 0.96b4...Here i'll help you with that You must login or register to view this content.

3rd: Make sure your iPad is plugged in and Itunes is running.

4th: Once you get them both, open up Redsn0w
click browse in the bottom left, find your 4.2.1 firmware on your desktop

5th: Click Next now make sure that only install cydia is checked...Click Next and do what the instructions tell you after that...

6th: Now after that load up redsn0w again and load up the 4.2.1 firmware again. now click Just boot tethered now and unclick install cydia...Now follow the on-screen instructions

7th:REMEMBER, this is a tethered jailbreak which means if your iPad runs out of battery you will have to do step 6 again...Untethered jailbreak will come out soon,ok.

sure, i originally created this guide to help my friend but if it helps more ppl then no problem. You can use it.

nice post thnx 4 help