I recently installed ISA 2004 on sbs 2003 and had some difficulties. One of the problems was that it shut down my Remote Web Workplace when accessed from outside the internal LAN, although during the installation I told it to allow such communications with the outside world. Now previous to the ISA installation when i ran the "connecto to the internet" wizard i was always asked if I wanted SBS to configure my modem for the various services that I needed. That was very plain and simple.
Now since when I went to https://DOMAIN/Remote
after the ISA installation and could not get in, I logged on to the modem and forwarded a bunch of ports like 443 and 3389 and 444. That helped, and so i managed to get to the Logon Page for the remote access. The problem is that after I do this I get to the page: https://DOMAIN/Remote/default.aspx
and all I see is the word "loading..." in 2 places on the page. That was there in the past but never got "stuck" there.
I've done a little research and all the rules for SBS are already done in ISA.
The modem is Netopia 3341