[gb2world]

The situation where I have seen javascript fixes to css to overcome IE z-index bugs is associated with a lightbox or a jquery dialog/message box, or some kind of pop up like function. IE would not honor the z-index settting, so the message/popup/shadowbox would appear under a page element. Consequently - the fix might be there to move your title tag under a shadowbox or some other jquery dialog box.

So - it you have a jquery dialog, or some other javascript shadow box type functionality on the site - you might want to check that it still works on IE7.