Darren,
Very nice work! The two things I noticed that I would do different is as follows:
A) On the model archive you have it split with page links. Because this will eventually get to be a very large number I would suggest as follows in replace of the links titled 1 2 3...Left align a select box with pages that will let them select. This will keep the page listing into a constained area without it getting to long and cluttered. Because this will make it a drop more difficult to navigate right align a next/previous button. An example of this approach would be in the following image.
Additionally, if I am correct the University Dormatory link from Xamo will automatically redirct to the referring page once the popup was launched. If you link it to target=YOUR_MAIN_FRAME there will be no blank window loaded.
If I notice anything else I will be sure to post. Once again great job!
Regards,
Kevin