This blog is just to have a central repository of all the official guides available for installation and configuration of various supported versions of BizTalk Server and BizTalk Adapter Pack:

Microsoft BizTalk Server 2013 Help
http://msdn.microsoft.com/en-us/library/aa548004(v=bts.80).aspx   

Installation Guides Related to BizTalk Server 2013
http://www.microsoft.com/en-us/download/details.aspx?id=35552

Installing BizTalk Server 2013
http://msdn.microsoft.com/en-us/library/jj248688(v=bts.80).aspx

BizTalk Adapter Pack 2013 Help
http://www.microsoft.com/en-us/download/details.aspx?id=38170

BizTalk Server 2010 Documentation
http://www.microsoft.com/en-us/download/details.aspx?id=11503

BizTalk Server 2009 Installation and Upgrade Guides
http://www.microsoft.com/en-us/download/details.aspx?id=4066

BizTalk Server 2006 R2 Installation and Upgrade Guides
http://www.microsoft.com/en-us/download/details.aspx?id=20725

Quick Start Guide to Installing and Configuring BizTalk Server 2006
http://msdn.microsoft.com/en-us/library/aa577356(v=BTS.20).aspx

BizTalk Server 2004 Installation Guide
http://www.microsoft.com/en-us/download/details.aspx?id=410

Microsoft BizTalk Adapter Pack 2.0 Installation Guide
http://www.microsoft.com/en-us/download/details.aspx?id=18352

Microsoft BizTalk Adapter Pack 2010 Documentation
http://www.microsoft.com/en-us/download/details.aspx?id=1325>

And following is the link to another KB article which has the list of all the Cumulative updates released so far for various versions of BizTalk Server and BizTalk Adapter Pack.

Service Pack and Cumulative Update list for BizTalk Server
http://support.microsoft.com/kb/2555976