Here is some information on getting RPC over HTTPS to work that I used.
Configuring the Server
Configure RPC over HTTPS – Exchange Server from The Lazy Admin
More on RPC Over HTTPs from The Lazy Admin (troubleshooting)
How to configure RPC over HTTP on a single server in Exchange Server 2003 from Microsoft
Testing RPC over HTTP/S Connection from Daniel Petri
Configure RPC over HTTP/S on a Single Server from Daniel Petri
RPC over HTTP/S Error 401.3 after Windows 2003 SP1 from Daniel Petri
Configuring Outlook
Configure RPC over HTTPS – Outlook 2003 and ISA 2004 from The Lazy Admin
How to troubleshoot client RPC over HTTP connection issues in Office Outlook 2003 from Microsoft
Configure Outlook 2003 to use RPC over HTTP/S