Downgrading IE on D90D7

Hi,

we recently purchased several D90D7 until to use in one of our facilities. Unit is installed wiht Windows Embeded standard 7 and came with IE10. Turns out a key support site of our will only work with IE8 and they have no plans yet to support IE9 or 10.

What (if any) is the easiest way to downgrade the IE version on our D90D7 from 10 to 8? I thought I woudl ask first before embarking on building a new image etc