Donald,
I have and am in the same boat as you. I applied to the MAS CAdet scheme in Feb 2003 ..... did not get any news until I called in May 2003.
I got to do psychomotor and psychometric tests in June 2003 (yes flew the whole 6500 odd miles for two days of testing .... worth every min.). Now its been 8 months and still no news from them!!! Its frustrating, even more when you're on the age limit of 26.
Good luck to you mate ..... just give them a nudge once in a while.