Thank you very much - that's a wealth of information and thankfully it's all presented in a manner my little brain understands!
I will have to dig out my certificates to check the exact wording, but as I recall I did the actual course in 2003 and didn't apply until 2004. The matter is further complicated by the fact I was chopped on BFJT and subsequently re-roled as a WSO so am not a QSP.
You've given me the clues I think I need to solve the mystery - many thanks. Time for me to put some legwork in to make it happen!
Blunty