That looks like Arabic script in the photo in the Al Jazeera article on the Afghan-Pakistani conference held in Kabul. Otherwise, it's nothing but English on the banners. In fact, the news footage on BBC showed President Musharraf addressing the jirga in English, overdubbed with a local language. Another reminder that English has become the language of global discourse.
Of course the tools of globalization can be used to good effect by all. The English language is no exception, as the CNN-friendly spokesmen of the Taliban showed us to such effect, in the pre-9.11 days.
Using those tools and creating them are two very different matters, as this physicist informs us on science and Islam.