mIRC comes in English only, but this may change in the future. The best person to contact is Khaled himself via
khaled@mirc.com rather than posting here. It may take several days for a reply. It's also possible that your language translation has already been submitted, and that it's being kept back for the future. To quote
Khaled's FAQ.
Question: Will mIRC be translated to other languages?
Answer: I'm currently working on making mIRC easy to translate, so we should be seeing mIRC in languages other than English in the near future.
Regards,