Ok I did that,
I copied up the \reviews\forums\vb3.php file and the \reviews\showproduct.php file
Now Avatars WORK, but signature pics are RED X's, (same as my gallery results).
For example the member KS-CS posted a comment in a review and his signature pic is a red X, when I right click on it and choose properties, this is the link to the image it is trying to display:
http://www.caymanclub.net/signaturep...gpic5646_4.jpg
Then I go into the main site forums, find a message posted by this same user and see his signature pic shows up there, I right click on it, choose properties and this is the link to the image that works:
http://www.caymanclub.net/signaturep...gpic5646_4.gif
It seems that the code in the Reviewpost assumes that the image will be a JPEG, and in this case it is now, it is a GIF image but the file suffix isn't being rendered correctly.
You have a bug.

Back over to you...