downgrade back from 2.4.19 to 2.4.16

Dear all, I want to downgrade 2.4.19 to 2.4.16, where can i download 2.4.16 rpm (32bit & 64bit, client and server). We have big synchronize issue after upgraded to 2.4.19 ( entries being deleted when i try to add them ) Can someone tell me where can get 2.4.16? Thanks Ken _________________________________________________________________ Eligible CDN College & University students can upgrade to Windows 7 before Jan 3 for only $39.99. Upgrade now! http://go.microsoft.com/?linkid=9691819