Just a few quick "note to self" type reminders when installing (not configuring, that's a longer tale) BizTalk 2009 on Windows Server 2008 ...

- RTFM which you can get from here

- Install the w2k8 service packs. You can get SP2 from here.

- Add the w2k8 IIS role

- Decide whether to manually or automatically download the BTSRedistW2K8EN{64|32}.cab as described here.

During the installation process you will have the option of automatically downloading the BTSRedistW2K8EN{64|32}.cab file. You also have the option to manually download this file, which you can get from here for 64 bit and here for 32 bit. It's ~270MB depending on whether you use the 32 or 64 bit version. Your installation may look like it has stalled and eventually time out and fail using the auto download option if you have a low bandwidth Internet connection. Manually downloading in advance solves this problem.