Notice the picture above is random but it is made up of 4 other images.
There is a random background image like this
Then with a random text image on top of it like this.
Then a random main image like this on top of it.
And then with a boarder image on top of all of it like this.
Putting these images all on top of eachother gives the result above.
The first three are random indexed from folders. All you need to do is add your own pictures to the folders and they will be added to the list of random images.
There are a few other tricks to get this to work in IE6 because of PNG handling.
When you are satisfied you can return to the homepage.