Themes: Getting rid of the Green Guy???

If this has already been answered I apologize but I haven't come across the answer yet.

The Green Guy During Call, think it's cute and all but how do I get rid of him?

I use the phone for business and I don't like having a bright green android popping up every time someone calls who I don't have a photo for.

I found another thread with this topic but there hasn't been an answer to it yet.

Any free themes to get rid of him?
-or-
Does anyone know the location of the little green guy so that I can delete it manually

 

Thank you for the response, I wasn't sure if I was missing something obvious or if no one knew.

I read about an update that changed the android image from 2D to 3D so I know it's possible, I just wish it was easier to make changes on the phone like it is in other versions of Linux....That was the main reason I didn't get the iPhone, I thought Linux/Android would be more customizable than Mac/iPhone.

So I guess now I will look into finding out the root password and a Free Terminal/Shell App for the Eris HTC....but if it's in ROM, I'm not sure that I can do anything with it until they have an update to flash it.

Thanks again, It I find the answer I will post back