Thanks ben_b...MSN 9 Beta 5 (Refresh 4) was released on 11/6/2003
"We have just released MSN Beta 5 refresh, you should start getting the update at anytime. The new version is 9.00.0011.0500. This beta refresh is a silent refresh, so when it is done downloading, the next time you log off it will update itself silently".
NOTE: If you are already running Beta 3 9.00.0010.1601 DO NOT use the Update me now or re-install to get the new version.