Recommended book for SharePoint 2007 work flow development (a.k.a) customization using Visual Studio 2008

Which version of VS are you using? I'm running VS2008 Team Suite (SP1), and I get all 8 templates mentioned. Perhaps try a re-install on a virtual machine, to see if it was an install failure?

I'm shortly going to be in a similar scenario and have been looking into this issue ahead of time since I heard of this issue in blog write-ups. You can apparently still develop under 32bit and then move it to the 64bit server.

It seems that the issue is truly in the Sharepoint Extensions...so if you don't use them (ie. SharePoint 2007 Sequential Workflow or SharePoint 2007 State Machine Workflow projects) and just create a workflow project it appears to have better success for some.(look in the comments to the posting)

Here's the tracked bug at Microsoft Connect, some VS team members provided a "work around" which is basically what I first mentioned.

Bottom line, crummy handling by Microsoft considering this is their "Showpiece" and they are pushing people to 64bit platform. In another two weeks I should be feeling this, if I come up with anything more I'll post back. Good Luck!