I shall be removing hacks and calling up IE style sheets for IE 7 and less than IE7 with conditional comments. So far, the only IE7 variation I have made is:
@toicontienMay 31.2006 — #I believe he's talking about <div style="foo: bar;"> type styles. I don't think you can style pseudo classes inside the style attribute. The only way is to assign the element an ID or class and use an external or embedded style sheet.