I can't see an upper age limit anywhere - I'm assuming because of the laws surrounding advertising of jobs with upper age limits - So what, theoretically, is the upper limit?
Not that it will sway me from applying - that's for Mrs Beatrix to try!
Mind you, trying to finance a mortgage and two children through 2 years of training might be the final nail in the coffin - pity they didn't offer these when I was single and lived with the parents!