Need some help with selling a vehicle on ebay!?! Please answer!?

I purchased a Ford Contour last year and want to sell it on Ebay. I did all the necessary steps on ebay and then put it up for auction. However when I typed in the VIN for the car it showed 2 problems. First and formost there is an odometer problem. It does not say specifically what it is, but it does say that it could be that the odometer was broken etc. The next problem it says is something about a Lien. I have never sold a vehicle via ebay before so I dont know what to make of this. I know when my father registered it, we did not have any problems. Exactly what does this information mean. I dont want to put this vehicle up for sale if it is not suitable to be sold. Thanks