I have accessed this site from home on Firefox as well as MS Explorer with no issues - and, I am currently on my boat and connected to the internet via a different provider and still have no issues with Firefox nor Explorer - maybe something in your security settings of your browser or with your internet provider causing your problems, Fred.
As a retired military veteran from the Vietnam era, I think what these guys are doing is fantastic!
It works through my commercial provider just fine! Ah the perils of employment at an institution with extensive defense research grants....
What I couldn't see there...but can see here....is the concentration of veterans instructing, which is the critical key element I first wondered about, and a very good sign.
Best of luck to all involved.