Hi mostafaalsaddy,
You will not find any drivers for Windows XP on NB500 because this old Windows version is not supported. Everything what you can download on Toshiba website are drivers for Windows 7 but Windows XP is not supported.
If you can’t believe it check the page yourself:
http://eu.computers.toshiba-europe.com > Support & Downloads > Download Drivers
Maybe you can find on external pages some 3rd party drivers but there is no official support for XP. You should install new and better Windows 7 on this great netbook
