Setting up IIS7 with ARR and URLrewrite help!

[themightymrp]

I hope someone can help with this as I'm not too great with IIS7.

 

I have a server running our internal Intranet page which is also accessible from the outside world via an extranet.schoolname.sch.uk link. I need this Intranet site to carry on functioning as it is. Currently http://intranet/default.php

 

On another server, currently only accessible internally, is our library management software Oliver. This is accessed via http://server2/oliver.

 

I would like to be able to setup using ARR for reverse proxy (?? yes/no) with URLrewrite so that I can use either http://intranet/oliver or http://extranet.schoolname.sch.uk/oliver to browse to the oliver page seemlessly. I thought I had it working at one point as it brought up the homescreen. However clicking any links changed the URL back to http://server2/oliver

 

How do I set this up correctly? I have no clue what to put in the pattern matches or what rules Inbound/Outbound need to be in place. Any help is appreciated.

[themightymrp]

Come on peeps! Someone must have an idea??