Hey Nina,
I’ve been having same problem. Only My Adole Illustrator is Version 8, really old. Anyway, found a font that would work. It’s at sa-hebroots.com/free_hebrew_fonts.php. It’s called BSTHebrew. I downloaded it and then pasted it into c:\windows\fonts. Also, Went into the Control Panel,Date,Time, Language & Regional options, then Regional and Language Options, Went to Languages, Details, and added the Hebrew font. Once I get my Illustrator up and running, it’s found in the Type, Font section. Or at least it should be. Anything that you have in c:\windows\fonts should pull up in adobe illustrator. I’ve got Windows XP and have been trying for two weeks to get this thing working. Still can’t read Hebrew, but at least the font comes up. Good Luck.