I went looking for info on your notebook and I found a full compliment of drivers for Windows Vista
, Windows 7 x32 bit
& Windows 7 x64
bit Operating Systems (OS). There are camera drivers available for all OSes listed. There are NO drivers for any other OS - including Windows XP. That tells me that there is no driver for the camera and no support for the notebook when running Windows XP. The site also indicates there is no support for any other OS than those listed, too. I suggest that you download the latest drivers from the links I provided above and try once more.
If you are having difficulty with your camera in a supported OS with the drivers that are available, you might try posting a question on Sony's Online Forum. Here, you be connected to other Sony product users that may have already done what you are trying to accomplish. They can probably help you a great deal as I suspect running Win XP on your notebook wouldn't be too hard - and they may have sources for drivers that will work with your hardware. If you're not getting the help you need, you should contact Sony Support
I hope this helps & good luck! Please rate my reply. Thank you.