I have been working on a site for my friend which does what you are trying to do.
http://www.digitalpadin.com/spurgeon/
Click on the "Version 1.0" star to login, username: demo, password: demo
The star will only work from the homepage, but you will be able to edit a few of the pages.
I can send you a copy of the files if you'd like. However, I have to warn you that it's not simple by any means. I noticed you wrote that you needed an urgent solution, so this might not be it, but you might get some ideas. If anyone else is interested let me know.
You're all welcome to go and play around with the site since it's not live yet, but please do not erase everything or deface the site.
Thanks,
Sandro