No offense, but it looks like your ship might already be glowing, notice how you can see it even on the "dark side" try enhancing the contrast/brightness and you should see it get brighter. Likewise if you turn off glows you will see the model get darker.
Needs more defined textures with windows or glow points instead of a whole hull glow (that's why you're probably confused you had no idea it was already glowing)!
That's my assessment (but then again... Better get a second opinion!) I had a similar situation with a hull texture all white and glowy. I didn't realize it was entirely glowing till I flew to the dark side of it and still saw the model completely normal when it should have been darkness.

L8tr!
[I don't know about .DDS format so here's what I do with 8bit PCX's]:
Then depending on how it looks you lower the brightness a tad and simultaneously increase the contrast/saturation. Anything that should glow should start getting brighter, while darker colors now turn dark thus less glowy.
Copy pasting black over large areas of hull isolates glowy sections better and makes them stand out more. When you get a nice balance and need to refine it save teh image and continue darkening the non glowy areas and increasign the glowy ones...
Eventually you should have textures like this:
I posed this on purpose half in darkness half out so you can see the strength of glows in and out fo light. as you can see parts fo teh ship can't be seen well in darkness except for the glows while the glows are muted or only normal as on the main map in the light.

Main Texture

Glowmap

I hope this helps you out a little.
