Billy
Sorry to hear of your situation at work, what a crock.
I am not yet signed, sealed and delivered, but am penciled in for March. My advice is to phone up HR and keep on trying every week or so if you aren't yet on March. You never know what reshuffling will be going on. I have had my medical in August, but security clearance and references are completely out of my hands now, forms have been filled in and the rest is up to HR. Have you filled in your security questionnaire, if not phone up and ask for one, and for a letter regarding the medical. Mine all happened fairly soon (month or so) after I was accepted. I don't know that they do have a system of putting you down for a course when everything is completely ready, of course it would help, but I'm sure once you get through to someone they would at least be sympathetic to your plight and see what they could do. Good luck.