re: Zen Cart v1.3.8a/v1.3.8 with UK mod

since installing IE8 my store and many other of my webpages have taken on a spacing of their own!
i have fixed my webpages by inserting the following line (before any links)
Code:
<meta http-equiv="X-UA-Compatible" content="IE=7" />
but i'm still left with the store having odd spacing as i cannot figure where to insert this line!
any suggestions?
NB: the store looks okay with the 'compatibility view' button activated, so i'm guessing there will be a proper fix to look out for soon??