Does anyone know of a "reverse proxy script" that can be used server-side? Or how to achieve this with apache? Any help would be appreciated

Try either

php5rp -- http://code.google.com/p/php5rp/

or depending on your requirements, a much more robust solution would probably be the mod_proxy Apache modules. -- http://www.apachetutor.org/admin/reverseproxies

PM me if you need some help with this.

Thanks this is a great start. I am sure I will be PM'ing you ....lol