i jailbroke my ipod touch 2g using a program called CyW00d Jailbreak Helper. I found the how to video on youtube, it was very easy. I've turned my ipod off before and booted it with the CyW00d program and it did it fine. I just turned my ipod off about 30 min ago, i went into CyW00d and did everything I've done before to boot it, but now it wont work. I go through all the steps fine then when I get to the last one you click the button and you type into the command prompt "go" then "/exit" and your ipod boots and everything is fine. But instead of it all being fine my ipod just stays on that screen with the apple logo and my itunes recognizes it and everything but it just wont start. Then after about 5 min of it sitting at the apple start screen it shuts off. Does anyone know what I can do? I really don't want to rejailbreak it because that would be a pain if I have to put all my stuff back on it.

Unfortunately, you will have to restore or try again. If it still does not work properly then re-jailbreak it. I hope you did more research than just watching a video on how to jailbreak and reboot it. If you do not completely understand what you are doing then you probably should do more research and don't jailbreak until ou know what you are doing.