What a fun project, I would have loved to do such a project in collage.
[quote:399dntbv]...open source is not terribly useful when the libraries required to compile and hence fix some of the many many bugs, are not open source.
While you can't compile the Construct's IDE from the source (unless you have the PROF-UIS library), you can compile the runtime and all the plugins as long as you have Visual Studio. You can even compile with Visual Studio Express, you just need to get a hold of the MFC/ATL libraries.