I've created some new software which I've called Basic Sudoku. This reflects the fact that it's written in Basic (Tarek once said my software was very retro, this is no different!) and also that it uses basic solving techniques, namely locked candidates type 1 and 2, hidden and naked sets and basic fish (ie x-wings, swordfish and jellyfish). You can get it from here:
http://www.geocities.ws/aidan_001
enjoy