Difficulty 1 hash means that your number was really close to the winning number, but you didn't win. It's just shown to give you an idea of how many tries your GPU has made, and so you can say "ohhh, I was only off by one number, maybe I'll win next time"
Sounds like the story of my life!
I did fire up RivaTuner and it boosted the card up to 18.0 Mhash/s from 16.4 Mhash/s. I can't seem to find any 5970 GPU over here in Sweden. Will research a close alternative card.
Also, looks like the slush pool is closed at this time. Any recommendations of another good pool?
Thanks and here's a small tip of 0.05 until I purchase or create some more!