I would try the dreamweaver extensions site. I think I remeber seeing some similar extensions, and I wouldn't be surprised if someone has wrote one for this.
10:46 pm on Oct 31, 2002 (gmt 0)
it's easy enough to add Arabic to a page in DW or anything else...set the page encoding to utf-8...use Unicode for all the text...simply put a <span lang="ar"> (or just the lang="ar" statement in any other tag that applies only to the Arabic text) and cut and paste the Arabic text in there
for Arabic you'll also need dir="rtl" of course
it's easy enough to do as long as you start from Unicode for the page