I suggested this ticker (ORSTF.PK) for the "caps" game. You should only start a call on this ticker with a reasonable limit since the volume is very low on the U.S. exchange and the price (the bid and ask) is usually pretty far from the last price on other exchanges like Cairo, London, Frankfurt, etc.. Keep in mind that the share are quoted in different currencies (EGP, USD, EUR)
So the ISIN is EGS74081C018 and the limit should be placed close to the price quoted for the London exchange.
It closed at $26.20 in London on 11/20/09. Please refrain from playing the "bid/ask game". Life is short, you should have better things to do, hehe ...