The itouch wont turn on it will only show the symbol of the apple in the back ground but will not turn onto the main screan

huh?

hold don the top and bottom button and the sam time and keep it held down till the apple logo shows

I think it is that you might have to restore your ipod to its original firmware and reinstall the apps. If this doesn't help, call apple and let them fix your itouch. Also these days, anyone that jailbreaks their itouch gets their itouch screwed because apple does not allow jailbreaking.

well do u know the password

Try removing that app from your iPod, then download it again from the App Store (free re-downloads) or if it is on your computer, simply connect your iPod and upload it back onto your iPod. That always works for me.

press and hold wake/on button and home together until apple logo appears

Do a software restore in iTunes.

If you just plug your iPod into the computer, it should work fine. I forgot my password once, and I plugged it in, and it worked and didn't take off the songs. As long as you plug it into the computer you put songs onto the iPod from, it shouldn't be a problem.

Connect the ipod to your computer and let it sit for about fifteen minutes. Then it should show up in your computer and under itunes. Usually, if your ipod dies completely, when you try to charge it using a wall or car charger, it will do that, just flashing the apple logo and going back off. Leaving it plugged up to the computer will allow the battery to charge just enough so that it can sync with itunes. While it is plugged into the computer and charging, it should say something like, battery very low, charging. It should work after letting it sit plugged up to the computer.

i had the same problem. this is all the steps needed, calling apple isnt necessary.
first: press down on the top power button and on the menu button
second: keep pressing, eventually the screen to turn it off will pop out. ignore it and keep pressing.
third: the itouch will turn off completely but dont stop pressing
fourth: the apple sign will come out. you may now release.
fifth: now you should be able to connect to itunes that will restore your ipod.

your welcome.

oh and get some ice for your fingers . lol.