Office 2003 SP3 has been available interactively on MU for many months now, but today [February 28, 2008] marks the beginning of automatic distribution to MU users. We've heard great feedback from customers who've already installed SP3, and feel confident in distributing it to the many users who rely on MU to keep their PCs secure, reliable, and up-to-date. Note: The automatic distribution process will be gradual, so some users may see it install today, and for others, it may take a little longer, revealed a Microsoft representative on behalf of the Office & MU Teams.

Of course that Office 2003 SP3 is also still available as a standalone download via this link.

Thanks for the info.