saw this on Winbeta.org:
Just when we previously posted that Microsoft has decided to give testers 'one last look' at the Windows 2003 Server Family beta, we eat our words.. Yet another Beta of Windows 2003 server has been made available to testers. "We are pleased to announce that Windows Server 2003 interim build 3763 is now available for download..." read the email that has graced our inbox.
Build 3763 follows directly on the heels of build 3757 that was made available less than a week ago. We can only speculate, but this would indicate that the entire 3+ year long beta is rapidly approaching its conclusion. We have been put on notice to look for gold code within the month, we'll keep our fingers crossed.
News source: Winbeta.org