TriggerFinger

I believe a full version of either one will do. What you actually need are the drivers for XP. Toshiba website may not have the device drivers for XP... so you have to make sure you hunt them down before you even start the conversion from Vista to XP.

Also expect that you may lose some functions of the laptop (i.e. buttons, utilities, etc.), as they may NOT work in XP due to incompatibility.