@SourceSkyBoxer: Thank you for fixing the images, now I can see them.
As the warning message says the current version of Wrap-R is not supporting groups or components. It unwraps the not grouped geometry only. So if you want to use Wrap-R as a standalone application make sure that the .skp file contains only the part of the model what you want to unwrap. Make sure that it is exploded and not grouped.
In your example you probably get the warning because "Chris" (the men in the scene) is a component and you saved him with the model. So either erase him and try to save without him or select in SU only the box, right click on it and from the context menu select: "WrapR / Send to WrapR"
About the shortcuts: If you select the file menu's shortcuts option you get a dialog box where you can see and even redefine the shortcuts.
I hope the above helps.