The Forefront Server team is pleased to announce that Antigen 8 for SharePoint Service Pack 1 and Antigen 8 for IM Service Pack 1 are now available for download.  It is important for customers to upgrade to these service pack releases before the AV engine mix is changed on December 1st, 2009 (as announced on July 1st, 2009).  Previous builds of the product will still function after De