"The page you are looking for is currently
unavailable. The Web site might be experiencing technical difficulties, or you may need to
adjust your browser settings."
That's a normal IE message, although it doesn't appear with me. It might have been temporary, or it might indicate another problem. I get the same message in IE if a page contains advertisements located at sites that I blocked in my hosts file (then the space allocated to the advertisement gives an error message like this).
I went to the site with IE yesterday and today, and to my surprise I got a dating page the first time on both days (very charming -even inviting- girls, to be sure) also; a kind of pop-up or pop-under. And if I use the ip-address from ping it redirects to the ISP's home page for administrators. And the statusbar of my Firebird (0. flashing by shows connections to sites starting with asg (can't read more) which aren't on the page loaded. Something might go wrong if such a url happens to be in your hosts file or is blocked by any other program.
There seems to be something fishy about the site.
I've got Firebird set to block all popups, and it still shows the full page. So it can't be a pop-up, I think. But I don't feel happy with it either.
I suggest you try renaming your hosts file to see if that makes a difference, check your Mozilla settings and retry IE both with and without hosts file. Also disable all ad-blockers and popup-blockers you might have running.
Hope this helps.