Here are a couple of suggestions you could consider - one is to hold the options giving you a guaranteed stop loss at 20c for the next few weeks until 31 January 2007 or until you decide to close the position. The second is to simply sell your options on the open market and then buy the shares providing brokerage and slippage costs are not too high.
However, as I'm not familiar with the terms and conditions of company options, these suggestions may not be applicable. On the normal ETO (options) market, we organize exercise with our broker, so might be worth a phone call to your broker to find our more information.
Best of luck!