Additional Usergroup Images - Broken Images

[Lost Eventide]

Hi there! Hopefully someone here can help me. I recently installed the Additional Usergroup Images plugin on my forum, and it works great except for one thing: the additional usergroup images are broken.

Now, I figured out why they are. I use {theme} in my usergroup image url paths seeing I'm intending on having multiple skins where the usergroup images will not match, and {theme} gets replaced in the primary usergroup with the appropriate path, but the additional images do not replace {theme} when displayed.

Is there any way to add something to the coding so that {theme} does get replaced by the appropriate path when it is rendered?

Thanks in advance for any help!