Not sure what the Preview issue is, Rob. I've never noticed a problem.
With regards to the title of the image displaying, what OS and browser are you using?
On this XP / IE6 machine, a hover reveals the title of the image ("this.jpg" for example
). I can't recall whether the same happens on my Macs at home - I will check tonight with both Safari and Firefox.
Finally, the adverts help to allow Andreas to provide the playground and without them, we'd be a swing or a roundabout short of a good time.