To publish your Vidpresso Stream to your YouTube account you need to first find your Streaming Server URL and Stream Key. Here are the easy steps to find those.
First we'll find the Stream Key. Log in to your Twitch.tv account and head to your dashboard.
In your Dashboard, click the tab for Stream Key.
Click on the "Show Key" Button.
Read the Disclaimer, it's legit. and then click "I Understand." and Copy your stream Key into Vidpresso. If you need help, you can follow this article here.
Wait there's more. We now need to find the best streaming server for your location. You can use this page to help with that. (Or this list) For most folks in the west coast of the USA, "rtmp://live.twitch.tv/app" will work. But using the link above you can find the absolute best server for your location. You link should start with "rtmp://" and end with "/app"
That URL paired with your Streaming Key we found earlier, is all you need to paste in to Vidpresso.