Not quite as simple as that unfortunately. People sometimes use pictures that they've found elsewhere to advertise an item they don't even have! I got half way through a deal on a wood chipper that way last year until I tangled the guy up and caught him out.
In my case the seller asked for immediate payment on completion of the auction. I did a bit of homework before I paid and found that although the chipper was up for sale right up on a Scottish island the seller was based in Leeds (I think). He was keen to get it on a pallet for me to save troubling me with collection. I asked if a local friend could collect for me and he said he'd rather work with his own courier. I then obtained his phone number from ebay and called, although he had avoided all attempts at getting his number from him. He couldn't speak a word of English which I found very odd considering he was selling the chipper for his father (his excuse for being so far away), who had lived up there all his life and didn't have the internet!
My advice would be to bid on it as you normally would but do not allow payment of any funds what so ever until it's been viewed, test driven and you're standing there with the guy who's selling it.