i still don't understand why the decision to do this download thing when you could have set it up as a website. I think a normal website which can be bookmarked would be more successful. Do you have much traffic? Not too many people like to download software to view porn.
look at
http://www.adultmonkey.com
these review sites are getting popular, why not just do something like that?
your thing looks good, just don't think it's a great idea compared to a website.
these browser things have been tried as long as i can remember but i don't know of any of them that have been that successful.
maybe those pic finder things which steal pics are, dunno.