I think this is what I have. I just bought a D40 a few weeks ago and love it (my first SLR), and at the shop I bought it from they had a deal (well, according to them) for a 55-200mm lens, so I picked it up. I haven't had many opportunities to take good shots, but so far it is awesome. I, as a noob, highly recommend it
You probably have the "old" 55-200mm lens, as you mention getting "a deal." The 55-200mm VR is fairly new, just came out a couple months ago. Take a look at your lens and it'll say "VR" in red if it's the newer lens.