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Buenchico, the link you provided works well and is very interesting - I'll explore further. Rojash and vascop, thank you for your additional comments. It's interesting that you, rojash, refer to it (MS Publisher) being be one of the least suitable applications for producing a website. I've heard similar comments before, but it's the only one I know anything about and wouldn't know where else to start!
The recommendations about using IE are there because I found that Firefox, although it operated the main links at the top of the page, didn't connect other lesser links within the body of the text.
Thanks very much everyone. This has been a most helpful discussion.