It's common to use flash to develop websites - I did that for a while - paid for a flash template, custom modified for me, but it was a bit gimmicky. I visited Ryujie's website (great photographer, poor website) and he has a series of rolling thumbnails and if you can catch the right one, up comes a tiny image, not a lot bigger than the thumbnail, with no navigation controls - disappointing. Other sites have images that don't centre on the screen or they don't resize well to my office screen (800X600).
Of course, my own site is a mix of 90's style pages linked to smugmug. I keep it this way for a few reasons - I'm too busy doing other stuff in photography to bother with learning Dreamweaver, I don't like the gimmicks on some flash sites, and most importantly smugmug allows significant flexibility in screen size and viewing methods and it makes editing images quite painless - adding, removing, transferring categories are all simple. Having to re-upload the entire site isn't on when you have hundreds of images.
One of these days I will have another go at improving the site and in the mean time, please people, keep from getting too clever - or perhaps more accurately - put a limit on what your web designer is allowed to come up with.