A couple of week ago, we reported about Google's new AdSense interface and posted on screen shot, provided by Google. I just gained access to the new interface myself and I took many screen shots. Before I provide the screen shots, I wanted to share with you both the URL they gave me to access the beta interface.
The link at the top right is in red and says "Try new AdSense." When you click it, it takes you to https://www.google.com/adsense/enablebeta and then redirects me to https://www.google.com/adsense/v3/app. I believe you need to be added to the beta to gain access, but those are the URLs.
Here are screen shots, with sensitive info blocked out: