people do modify there code. for instance I can tell you maybe try altering the line below in showframe.php and showphoto.php
Code:
Content visible to verified customers only.
change it to
Code:
Content visible to verified customers only.
That will make them cat avatar size however this is considered a code modification. There is no direct product support for that in fact it can void your ability to receive product support and I will not offer any assistance regarding the change or outcome.