Wow, thanks for the detailed response lucy24. I really appreciate it. I honestly didn't understand half of the mod_alias reference. Assume I don't know much and you won't be too far off:-)
>>it can't possibly all be static, hand-rolled html<<
Well, actually ...
that's not far off reality either! We have a rather cludged together home-made set of admin scripts (I won't glorify it by calling it a CMS)
I'll have a go at some of your rewrite suggestions in the morning - its getting late where I am, and my heads hurting, too now!
Thanks for your help,