Need Toshiba Laptop Drivers for windows xp

My Laptop has windows vista buisness edition.
But most of our programs have not good compatability with it.
so i want to install windows xp professional.
but i want to insure that xp drivers exist for this brand before installation.
i cant find my laptop brand in toshiba site for my brand.
in below of my laptop this label was found:
Model No:PTA83E-0GY055GA
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shirinAuthor Commented:
many thanks.
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