HOW TO JAILBREAK IPOD TOUCH 3.1.3
First Of All, Connect You iPod To Your Computer/Laptop.

Then Download Spirit. To Download Click This Link: Spirit

After It's Done Downloading, Open It (Obusily)
At The Bottom Of This Picture, It Says"Please Connect Device", But When YOU Open It, It Should Say The Type Of iPod/iPhone You Have And It Will Say What Version Of It You Have Like 3.1.1, 3.1.2 Or 3.1.3. When You See That, The Word "Jailbreak" Will Turn Black. Click It And Then Your iPod Will Reboot, And The Backround Of It When It's Reloading Will Look Abit Like Space. When It's Done Rebooting A New App Should Appear Called "Cydia" Then Your Done