How could I publish OWA to the Internet?

[Tal_2]

I have Proxy 2.0 in DMZ and I don't have more budget to buy other Proxy server.

I'm using OWA 5.5 and I want to locate it in the network and publish it
with PROXY 2.0 that locate in the DMZ.

I have tried to configure in WEB PROXY SERVICE-PUBLISHING "ENABLE WEB PUBLISHING"
SENT TO ANOTHER WEB SERVER "IP:PORT" but when I have trying to connect to the web of the PROXY I have getting the default page of the IIS.
It is not redirect me to the ANOTHER web site that I have configure there.

I will admit any solution.

Thanks in advanced.

Tal