I believe there was a new dependency introduced with the editor component, to run the program you need to ensure you have the .NET frameworks 1.0, 1.1, and 2.0 installed. Links for 1.1 and 2.0 are provided in the installation instructions, 1.0 can be found at
http://www.microsoft.com/downloads/d...displaylang=en. Please check that all 3 are correctly installed and try again.