The author advertising plugin doesn't work for AdSense.
The creator uses PHP to swap out your ID with the post writers ID.
My fried wrote a post yesterday, which received 400 unique visitors.
If you looked at the HTML code, his Publisher ID showed 50% of the time.
When logging into his AdSense account the next day, it showed no impressions.
I looked at this post over at TechFilipino: http://techfilipino.com/share-google-adsense-for-multi-author-wordpress-site-needs-old-google-adsense-code/
He agrees that the plugin is BROKEN:
"Then I realized it is because with the new Google Adsense Codes just changing the publisher ID doesn’t work, and you’d need the old Google Adsense codes to make it work. This is because of the google_ad_slot, which is unique to the creator of the ad and won’t work with other Publishers."
In his solution, he said to visit a website called old adsense code. However, this could be against AdSense TOS.
With that said, I have NO IDEA how to get this plugin to work. My site allows anyone to register and begin making money, so I need a plugin that will allow anyone to register and enter their AdSense information.
I may end up allowing publishers to enter their AdSense code directly into the WordPress post, but I fear that that would give them too much control.
I don't really know what to do at this point.
But for those that are wondering, this plugin DOES NOT WORK with AdSense.