http://www.acer.com.sg/products/travelmate6292/psp_travelmate6292.asp
According to the above link, two versions of Vista are
available.
Is Home Premium installed or Business installed?
If Home Premium is installed, you cannot move to XP in this direct
manner.
If Business is installed, you could. Call up Acer and ask if they
have downgrading services available.
Either way, download any Linux distributions, burn it to a CD and
install. This will wipe out Vista. After that, install XP.
Make sure you set your CD/DVD drive as the first boot device.
Also,if say i reformat to windows xp,i wont be able to use the
recovery CD in future right?
You won't be able to once everything is wiped out.