How can I get a new Bitcoin exchange up and running? I would like to have a Profit Points &lt;-> Bitcoins exchange. The exchange could either be developed and run by contributors of Open-org.com or be created by an existing Bitcoin exchange. I have, however, already contacted World Bitcoin Exchange, to ask if they are interested in creating such an exchange without getting an answer. To develop the exchange ourselves seems like quite a task, due to the need for security even if we would base it upon the open source of the World Bitcoin Exchange.

The reason why I am so interested in creating a Bitcoin exchange is that the spirit of Bitcoins really match the spirit of Open-org.com. We both want to take on conservative systems and innovate to create something better. In the case of Open-org.com the main aim would be to create an alternative to the large established and utterly closed corporations, who feel like they own their employees.
The easiest way to get a Bitcoin exchange up and running is to start with an open-source exchange project like Intersango and modify as appropriate to your target currency (Profit Points in this case).

As has been mentioned in the comments, however, GLBSE might actually be more appropriate to your intended use-case.