Surely one of the problems is not the browser, but the doctype setting at the head of the page: vBulletin doesn’t seem to set one, but if you make an external page with a Unicode doctype, more browsers will pick it up.
Also, don’t worry about Netscape 4.x not working - it’s a piece of shit.
What the - whoa! I just pulled up this thread in IE5 (been running IE4 in compatibility mode). I can see the Hebrew now!
Perhaps when you use unicode you might include a warning that it might not display properly in IE4? ([sub]Some of us are still using it, apparently :o[/sub])
OS X 10.2.8 and Mozilla 1.1 here, and I think I see it correctly. I recognize aleph, at least, and the other two look Hebrew. Just to check, the bet looks like a backwards C with an angular corner at bottom right, and the gimmel looks sort of like a lower-case lambda… Is that right?