browsing Arabic site

[info at saudiabm dot com]

I know there is to many browse in linux

but in mandrake 8.1 I can't browse arabic site by all browsers

to know what I mean please check 

http://www.saudiabm.com/mybox/galeon.png (0.12.1)
http://www.saudiabm.com/mybox/konqueror.png (2.2.1)
http://www.saudiabm.com/mybox/mozilla.png
http://www.saudiabm.com/mybox/opera.png (5)

I have KDE 2.2.1 with kernel 2.4.8-26mdk (QT 2.2.4)