You may have noticed a sluggish or non-response to your post. Part of this may be due to your choice of subject title. Since no one can tell what you topic is, not many will open the message to read inside.
In the future, take a bit more time to craft a subject so people will see it and think "I might know this."
Your issue with SKYPE and headsets might be known if you try google on those keywords. If it doesn't work by tomorrow I'd pack it up and return it as defective (at least for your use.)
Hi, I have a Vaio T350, downloaded the skype and bought the Motorola H500, my problem is that my computer does not recognize the headset, do I need an adapter?