Should install the certificate on my External Clients?

From: Sean (
Date: 10/22/04

Date: Fri, 22 Oct 2004 10:29:04 -0700

I have a Stand-Alone root CA.
I've already created a certificate on OWA server and imported it into ISA
2000 server ... Internally the SSL does work but externally it doesn't.

My questions are:
1 - Should I install a root CA on my external computers so they can use SSL
with ISA?
2 - I reviewed the purpose of my certificate installed on ISA and OWA server
and it says: "Ensures the identity of a remote computer". That's ok to use
with SSL?
3 - Does Stand-Alone root CA work well for this purpose of security?