Updated the script to V0.0.3

-Removed the place2dTexture nodes from the ref plane shaders. There was some version conflicts and they're not used for anything anyway.
-Set the starting folder to "<current project>/sourceimages".

Known issues
I didn't make the script connect the transparency attributes of the file texture node due to
some different behaviour between maya 4.5 and earlier versions. I think you can connect them
manually if you're using 4.0 (so you can benefit from a possible alpha channel stored in the image).