SharePoint 2007 SP2 will expire your site in 180 days

Oops, somebody should be fired for this mistake. Apparently after you install SP2, start the count down because in 180 days your site is going to die. All the data will be intact but users won't be able to access it.

http://blogs.msdn.com/sharepoint/archive/2009/05/21/attention-important-information-on-service-pack-2.aspx

Wait for the hotfix before you install the service pack.