2012-04-09 16:24 - edited 2012-04-09 16:26
Thank you for your post and welcome to the forums!
If your device does not support Arabic, you need to visit the nearest Nokia Care Point as they will be able to add it on your device. You can find the nearest Nokia Care Point by following the link below:
Hope this answers your question,
This has been asked before and you may find the answer here.