In OS 9 the language kits are incorporated in the system you do not need an extra language kit anymore, which I think is absolutely great. The kits are not installed when you do a normal install of 9. To install the Hebrew language kit just use you OS 9 cd, run the installer, choose special installation and select only the language kit you need I am not sure what the folder is called where you select it but it's on the bottom of the row install option, you'd find it easily.
Once installed it should work fine. I don't know about Hebrew but for the Japanese I use it's perfect. In Netscape and iCab I have no problem with Japanese. (Don't know about IE, won't use it, but I guess it'll work too)
[This message has been edited by Nauscicaa (edited 10-17-2000).]