Bluetooth Connection COM port not detected

Dear all,

I’m currently using an Arduino Pro Mini for my project, which requires a wireless connection between Arduino and my computer.
So I purchased a Bluetooth module from DealExtreme:

It is paired with my PC, and it works if I’m using putty to open the COM port and read the data from the Bluetooth.

The problem is, whenever I try to use Arduino serial monitor or Processing, it doesn’t even detect the COM port, even if putty does.
May I know why is this so, and is there any solution?

Thank you.