Hey, you should be able to knock it into DFU mode by holding the power button and home button until the screen goes blank and then release the power button but keep holding the home button until you see the logo, then try to restore it via itunes. Also, don't jailbreak it dude. You might aswell put your ipod in a blender. It has the same effect at the end of the day. i.e Broken and useless. If that doesn't work, get in touch with apple via phone or the online chat system. They might be able to help you.
Also, try this video for a better explanation.
I didn't make this video but it is the best example of the tutorial stated in the text above I have watched.
EDIT: Also, if it fails, to get out of DFU Mode you will need to hold the power button down on your iDevice for 1 minute.