http://www.cnblogs.com/cleo/archive/2007/05/09/wss3_backup_restore.html
用Sharepoint Designer进行单个站点的备份
http://www.cnblogs.com/zhengyongfeng/archive/2009/03/30/1425268.html
SharePoint Designer 2007
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=baa3ad86-bfc1-4bd4-9812-d9e710d44f42