Fuad
Make sure you're using the same Unicode font in ID and IL.
If that doesn't work, convert the type to outlines in ID before exporting to EPS. Unfortunately, this will make the type uneditable in IL, but it might be the only way to do it.
=-= Harron =-=
Fuad
If "Traditional Arabic" is the name of the font as it appears in ID, then that's what you should try in IL.
You change fonts in IL the same way as in ID -- via the Character palette.
If Traditional Arabic is not a Unicode font, it probably won't work in an English version of IL. (It might not work even if it is a Unicode font -- too many variables here to know for sure.) In that case, you'll have to use outlines as explained before.
=-= Harron =-=
Fuad
If you haven't already, download and install Microsoft's Font Properties extension:
<http://www.microsoft.com/typography/property/property.htm>
With this extension installed, you can right-click on a font, select Properties (or just Alt-double-click on the font), and get a lot of information. The Charset/Unicode tab will tell you about the font's encoding and character sets.
Here are some links if you want to read up on Unicode:
<http://home.att.net/~jameskass/>
=-= Harron =-=