Hi Dave,
The log files you provided do not contain any information on the fact that TestComplete failed to find the wImage property. Could you please post a simple project which contains only the problematic code and the results of its execution?
As for the Extended section, please see the attached image. The image you attached earlier did not include information on project properties, just a fragment of the objects tree.
BTW, if the image checking functionality is significant for you and you need to implement it without any further investigations, I recommend that you just use Region checkpoints to validate whether the image is displayed (see the "Region Checkpoints" help topic ( http://www.automatedqa.com/support/viewarticle.aspx?aid=2984 ) for more information).