Ok, this wasn't always the case, but it seems that after I inserted some custom code suggested by the moderators here, the image uploader is sizing down everything to 100 px wide regardless of what properties I define on the backend.
The custom PHP changed the product view so that the full image is displayed, with no lightbox preview. It's about the only thing I can thing broke the uploader, because it was working fine before that.
I'm willing to give login credentials to you guys, as I have no idea how hikashops inner workings fucntion PHP wise, and I think it'd save us both time.
Please help, I'm staring at the finish line of completing this site and this is the last bug that needs stomping out!