I was looking forward to getting home so I could load hebrew input and os 4.5. Little did I know the trouble I would have to go through!! I was up till 5 this morning working on it. I have succeded!!!! Here are somescreen shots...
I don't know off hand. I took the Hebrew files from the os you have, for the 8320, and put them on my 8830. For me the emails come in with Hebrew. I have one option though, you can take off the Hebrew from the App Loader and then install the files seperately. I can send you a ready made .alx file. Do you have html email enabled?
Here are zip files for Hebrew and Russian. To install just double click install when your Blackberry is connected to your PC. Russian Hebrew
These are for OS 4.5 and are complete languages packs - menus, reading, and input.