I've also posted to that thread with a solution. Which I will also add here.
I've posted a fix for using this template with SketchFlow that ships in Blend/VS2013 (may work in 2012 but I didn't test).
Please read my instructions I've tried to be a clear as possible.
- You WILL need to download and install the SketchFlowWP7.zip file from this codeplex (I also provide a copy in the link below).
- Extract SketchFlowWP7.zip and run the SketchFlowWP7.msi to install.
- When it prompts where to install choose the path to your copy of Blend. For instance for VS2013 it's default path is "C:\Program Files (x86)\Microsoft Visual Studio 12.0\Blend"
- Next you will need to navigate down into the following folder "C:\Program Files (x86)\Microsoft Visual Studio 12.0\Blend\ProjectTemplates\en\CSharp\WindowsPhone"
- Here you will find a file names csWindowsPhonePrototype.zip, delete it. Yes really delete it, you are going to be replacing it's contents in the next steps.
- Download the csWindowsPhonePrototype.zip from the following linkg - http://sdrv.ms/1hED9Cm
- Extract the contents of csWindowsPhonePrototype.zip and you will have a folder called csWindowsPhonePrototype
- Move the extracted folder into the "C:\Program Files (x86)\Microsoft Visual Studio 12.0\Blend\ProjectTemplates\en\CSharp\WindowsPhone" directory. PLEASE make sure that you don't have a folder called csWindowsPhonePrototype inside of it, if you do it's that child folder you need to move.
- Now when you fire up Blend you should see an option for SketchFlow for Windows Phone.