Loading Images Into a SWF

I'm working on a project where we'll need to dynamically load images from a given location (specified in an XML file read by the SWF) into a SWF movie. From what I can find, it looks like this will only work with JPGs. Is that true? Is there a way to pre-process the images (without loading them into Flash) to enable the SWF to load them? Specifically, I'd like to be able to load at least GIFs, probably PNGs, and possibly TIFs and EPSes.

Mods: Please feel free to move this if I'm in the wrong forum.

You can only load non-progressive JPEG format images into flash using loadmovie.

I know there's a tool called 'ming' that converts jpegs into SWFs on the fly, have a search for it, since mx came out they may have extended it to cover other formats, or you might be able to find some other tools to do the same job. If you can convert your images into SWFs on the fly you can load them as SWFs.