Author here!
From The Lost Media Wiki
Don't bother asking Joshua Gunther about the music video. I tried asking him and he said he can't upload it, due to Dreamworks owning VeggieTales: https://drive.google.com/open?id=1dIrim09WXe6rVlNq0WtsCGynw5xuz2oH
Our only hope is that someone downloaded it while it was still on Joshua Gunther's website.