I am setting up a discussion forum and have experimented with all of the standard formats in the out of the box standard SharePoint 2007 package. I like the format of this forum. What is it? and can I find this in the standard 2007 package???

With "this forum" you presumably mean the "SharePoint - Setup, Upgrade, Administration and Operation (pre-SharePoint 2010)" forum ? Sorry to disappoint you but afaik these Microsoft forums are not based on SharePoint. So you won't find this look in the Standard (or Enterprise) MOSS 2007 package. 2010 Books: SPF 2010; SPS 2010; SPD 2010; InfoPath 2010; Workflow etc. 2007 Books: WSS 3.0; MOSS 2007; SPD 2007; InfoPath 2007; PerformancePoint; SSRS; Workflow Both lists also include books in French; German; Spanish with even more languages in the 2007 list.