I have read a lot on both sites about the Simple Gallery / Versatility iii (rockettheme) incompatibility, with mootools.  I have tried changing everything that was suggested, but haven't been able to correct the issue.   I believe it is the same problem, but it does actually work for the first time I click and image.  I does not work the second time.  After I close an open image, and click another, I get a white box start to pop, and then it opens in a new window.

I am up for any suggestions, now that I have tried most everything.  If I take out the XML reference line in the header it screws up the template big time.

Does SIG PRO solve the problem?   Is there any other recommendation that anyone could give me?