She does indeed have that paneling, but unless significant changes were made to her in DS9, I don't think the panels were ever that dark. I'm going from memory here though, so I could be wrong. Let me see what I can find for reference images.
EDIT:
Wow. Shots of this ship are hard to come by! Anyway, here are a few I found:
From First Contact:

While I have no idea how accurate it really is, this
looks like a good shot of the CG model from FC:

This sight has a a bunch of stills from First Contact:
http://www.shiporama.org/steamrunner.htmOh, and don't be fooled by the size of the bussard collectors. A lot of the red you see in the images from FC are actually just glows reflected off the surrounding hull.
Hope this helps you a bit.