Okay, I think I figured this out. This is what I did and I got it to work.
To Enable Guidance Packages
1) Launch Visual Studio and open a project, any project, it doesn’t matter.
2) Choose View | Other Windows | Guidance Navigator Window
3) Once this window is displayed, select “Guidance Package Manager…�from it’s dropdown combobox.
4) The Guidance Package Manager dialog box will appear.
5) Click on the “Enable / Disable Packages�button.
6) The Enable and Disable Packages dialog box will appear.
7) Check the box next to the “Guidance Package Development.�entry and click OK.
8) You may get the following big nasty error in the following section. If you don’t, you’re good to go.
9) After this works you should now see the “Guidance Packages�entry in the New Project dialog Box.
Big Nasty Error
System.IO.FileLoadException: Could not load file or assembly 'Microsoft.VisualStudio.TemplateWizardInterface, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
Fix for Big Nasty Error
1) Unload the “Guidance Package Development�by unchecking the checkbox in Enable and Disable Packages dialog box.
2) Close down Visual Studio
3) Follow the instructions in the following link: http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2370411&SiteID=1
4) Follow the previous instructions outlined under To Enable Guidance Packages. It should work this time with no big nasty error.
Have fun.