Change Thread Cat Images Only

[Gersfan]

Hi Folks,

I've changed the Index of my forum so that the Cat Image is Blue and the Table Header is Sliverish..http://www.gerstalk.com/forum/index.php

But within Threads each post is seperated with the Table Header image but I'd much if it was seperated with the Blue Cat image instead.

Thread View Example:


What I'd like to do is either Switch these images around within the thread only or just have two Cat images within the thread but I'd prefer to switch them already but only in threads, Can this be done and how?

I am using a Custom Style, Satelite. If that helps any.

Thanks Alot,
GF