I have Icon Packager 2.5. I downloaded the GT3 icon package. It came with two files. One is .iconpackage and the other is .icl. I've opened Icon Packager and tried to install the package. I've use the "Install New Package" button and tried to drag and drop the .iconpackage file. I keep getting a message that its not a valid package file. I'm new to this whole Object Desktop thing. Am I doing something wrong?