the translation of the program is based on a vso component, it's a lang_editor, available in a subfolder of the app, you need then to select one of the 2 component of the program.
I should make a video for it, we have already made some post but I m aware we need to improve this.
RSZ is the core of image resizer, and DFW is Digital Frame Wizard, which comes with the bundle but only useful if you are using to export pictures to a digital frame wizard or to the go on a USB key.