Edit: WP eStore v 5.8.3
I have a very serious issue w/ the WP eStore plugin that I have to get resolved asap.
The Return URL doesn't appear to be working and as a result, it's crashing the entire checkout process!
Return URL is correct in both WP eStore and Authorize.Net (see images below).
<img src="http://www.summitbusinessconference.com/images/estore1.jpg" alt="" />
<img src="http://www.summitbusinessconference.com/images/estore2.jpg" alt="" />
<img src="http://www.summitbusinessconference.com/images/estore3.jpg" alt="" />