I get to an error page:
The browser is not supported for Design2003 the Internet Explorer as of 5.5 and the Mozilla as of 1.75 are supported.
I have tried using current versions of IE, Firefox, Chrome.
Looks like I may have to downgrade in order to access the site? And this probably means you will have a good chance of not being able to access the site while out with a customer unless they have the exact web browser version needed.