I just downloaded and installed the latest versions of the Qt SDK, Qt Creator, and the Qt add-in for Visual Studio (I\'m running VS 2010).
First, I tried creating a Qt pr
Firstly, it's quite normal that MinGW libraries don't work with Visual Studio. Read up on the subject if you're still angry.
The Qt SDK (if that's what you downloaded, should come with a pre-installed QtCreator that works with minimal or no setup with the included MinGW toolchain.
If you want to use Visual Studio with the add-in, you'll need to either try the Visual Studio 2008 download from this webpage or rebuild Qt yourself. It's not hard, just time-consuming. Pointing the add-in to the build or install location of either of those should get you going.