I recently downloaded the Shapefiles for CA. I followed the upload directions and unzipped the file into my GRLevel3 folder. Then I went to the GIS/Load Shapefiles menu and selected the CA.shp file. The "import" button was grayed out and wouldn't let me upload the file. Also, when using the GIS/Loader it would only see the .shp file and not the .sty file.