apache config problem: sslexplorer + scalix

Hello,

I have the following setup:

a firewall with one internet address, with two DNS names, let's call
them www.myurl-one.com and www.myurl-two.com. I have two linux boxes
running behind the firewall (on 192.168.2.x address rang):
- one linuxbox running SSL Explorer (listening on port 443)(SSL
Explorer is a SSL VPN) -> 192.168.2.10
- one linuxbox running Scalix (apache + tomcat I believe this is) -
>192.168.2.20

For the moment I have portforwarding set on my firewall so that
everything coming in on port 443 is forwarded to my SSL explorer box.
Now the problem is my client now also wants to have webmail through
Scalix.

Is there a way to configure apache for instance on the SSL Explorer
box to forward webrequests like this:

https://www.myurl-one.com -> SSL Explorer website running on 443 (so
https://192.168.2.10)
http(s)://www.myurl-two.com -> Scalix webmail (so http(s)://
192.168.2.20/webmail)

Or perhaps this is possible?

https://www.myurl-one.com/SSLExplorer
http(s)://www.myurl-one.com/webmail

I would prefer the first solution, but if this is not possible option
2 is not really a problem.
I would configure my firewall so it would point both port 80 and 443
traffic towards the apache config (I think it would be best to
configure that "apache-forward" on the SSLExplorer box? Or should I
install a separate box for that? Not really a big deal since I'm
running Vmware server and I have some capacity left to install an
additional linuxbox).

Best regards,
Jan