Mockup of generic styled page, this will account for the appearance of the majority of pages across the site
Note the alternative (green) theme used in this example. Each netwrok has its own 'sub-site', differentiated with alternative colour schemes and heading graphics. The global navigation can be seen at the top of the mockup.
This design isn't actually going to be used entirely in the finalised design but I thought I should include it for demonstration purposes.
Example of the existing website that I am currently redesigning