Brian,I was able to get the same results that you did when installing TA on a Vista computer that has JAWS 8, 9, and 10. So there's no need for you to send a screen shot.
I think it will be an easy fix. It's related to the fact that in the registry, JAWS Version number ten, is put above the ascending numerical order of earlier JAWS versions. So you get V10, V8, and V9. Rather than V8, V9, V10.
Thanks,David