I posted a link to the tutorials elsewhere in the forum, but I've added them here for completeness. Please note, I'm still trying to get my head around exactly how the segmented memory architecture works so the bits about that are almost certainly wrong, if you notice mistakes, please let me know so I can correct them.
Tutorial 1 - The Inner Workings Of The x86Tutorial 2 - Writing Your Own Boot LoaderEdit: Ok these links are back up and running now. Ignore the certificate error (I'm working on it....)