I had a 15GB model with similar problems and reached a solution.
• First of all, charge the darn thing! If you don't have the necessary power adapter, your laptop should do. Normally, when the power is low, you'll get an icon on the screen to tell you as much. When it's really,
really low, then it can't even load that much up, as seems to be your case. Charging it should be a big help. Just don't expect the time and date to be correct at that point.
• You don't have to have iTunes loaded on your machine to charge it. However, if and when it comes down to it, you will have to have it to restore the iPod and then sync you library to it again.
If this doesn't work, there are a few more extreme options to try. Let me know if that's the case, and I'll detail them for you.