The problem is the lack of shadowing on it (besides a bland texture) Even if there were details on it, without shadows the human eye can't see the detail.
If you look closely at the front end below the window you can see some detail, but the shadow stops and thus the detail just blurs.
What you could try is to make a darker material for the detail (the indents) Actually, now that I think about it, I think the whole thing should be a bit darker than that. The indentations might need to go in a little more so that they block more light. (example attached)
Finally, try scaling the texture smaller so that it doesn't look as grainy. example pic (warning it's big)
http://scifi.about.com/library/graphics/sam14.jpg
Uh, I just reread your post and since you didn't make the jumper could you pass this along to daAan and manquesa for me?