Picture Management

Has anoyone ever tried to create an asp page that displays images that
either displays them as a slideshow or on a long webpage?

I have an html page that displays my pictures, but as there are many of
them which are large and my bandwidth is restricted I want to download
them and display them one at a time. Currently it the client tries to
download them all at the same time, or four at a time. This slows down
the downloads to an unbearable rate.

Is there a component that allows you detect when an image has been
downloaded and then allow a trigger to start downloading the next one?

Any Ideas?