Hi Jamie,

Yes, there is. Have a look at this thread: [url]http://fogproject.org/forum/threads/how-to-modify-the-pxe-boot-menu-to-allow-the-booting-of-iso-files.154/[/url]

There’s one comment of mine where I’ve detailed -in red lines- the structure you should follow. Although I’ve only used it for rescue tools, you should be able to select and deploy images.
You may also find this guide useful: [url]http://www.fogproject.org/wiki/index.php?title=Bypass_Host_Registration[/url]

I hope this is what you were looking for.