Thanks, Mike, I will look into the sugestions you make. Can't say more until I have seen them. I am involved with a wordpress site too, but we find it hard to have wordpress do what we like, rather than the other way round. But the main raison d'etre of that site is not showing photos and WP is indeed an excellent tool for the other types of content.
@conrad: In the time I made my website I needed flash only to make a kind of slide-show with slide-in/out animation. Today I would choose css to do the same thing. But as a bonus, the flash application well hides the location of the images, so one needs more than the right mouse button to download the photos. So far, all the web-apps I have seen work with Javascript/Css leaving the resource locators in the open. If that is all there is now, I guess I will have to go with the flow, but for the moment i am still reluctant to choose that direction.