Sennheiser CX 300 Consumer Headphones "plug ear buds computer" Questions

...plug in your ear buds in the "Pastel green" port. If your using Windows XP your computer should recognize this change and allow you to hear instantly from those earbuds. Windows Vista on the other ...

...I would like to use them with my laptop. The problem is that the headphones only have one jack/plug. It does not have a separate microphone jack to plug into my laptop. Can I get it to work as ...