as long as you don't take it to apple no one will give a shit where it came from. What model is it? Check here: http://www.apple.com/support/ipod/

You may be able to fix it yourself if you have any tech / soldering skills. It sounds like the pins in the audio jack are just over expanded and opening it and bending them back in to proper position should do it.
This site has some info for do it yourselfers: http://www.ifixit.com/Guide/iPod/


Or if you would rather have someone local fix it you want to try this place: http://www.irepair.ca/
I've never used them so it is not an endorsement.
Good luck, free shit is always good