I've just uploaded version 2.5
which has full support for GU4.
There seems to be some glitch with the downloads from VGInterface as of the time I'm posting this. Hopefully that will be resolved soon and you'll be able to grab the file. I'll check back later to make sure. (Until it is fixed you can use this link to download the file: http://www.vginterface.com/downloads/dl.php?id=32
Also, I'd like to say thanks to Craeat, LarrowZurb and many others for stepping in and helping identify changes that were needed. I was able to step in and provide an update this time, but who knows about the next time. In any case it is nice to see others willing to step up and help out. Thanks guys.