Need quicky help making slight change to X-treme Theme

I am looking to add the Album Owners name to the minithumbs page. For some reason my customer wants the owner to show instead of a description. The problem is that one of our other albums contains videos that need to keep their descriptions. So i cant just make a replacement of the description with the owner. I need to add another field to the minithumbs page that shows the owners name.

Anyone care to show me how to do this?