Thank you.
I have the FOG server set up, with static IP. I can PXE boot, and image a laptop, it looks like all is fine however, when I then look at the "image size on server" on the Hosts view, the file size is 0. If I then try to send the image back to the host, it tells me that the image file cannot be found. I can see files it has created in the /images/dev folder, but that's about it. Perhaps I need to investigate a bit further, but I have had no luck with the FOG wiki so far :-(