We've already rolled out Windows XP SP2 (no hope of going to Vista or Windows 7 in the foreseeable future unfortunately) across the enterprise and our latest internal roll-out actually incorporates SP3 as well - but unfortunately IE is explicitly being kept at version 6.
Regardless of the numerous security warnings our there and lack of applicability in the greater world wide web, my manager still sees intranet apps written for IE6 as the main reason to stay on it. What can we do to swing the vote in our favour? We're tired of supporting an ailing browser when users call us up constantly complaining that website don't look right, and more and more people asking for browser tabs "because that's what they've got at home".
Any arguments we can put forward would be great!