Ian,
To answer your questions properly ( and not show off about my son, cough , looks down at feet , sort of sheepish like)...
I think Phil has a good point, the MX2 is pretty flighty and you need to start with you something a bit more forgiving. If you have the TX and RC you can get good deals on Ebay. A high wing trainer is a good place to start as they inherently more stable. I started on the glow route , but if you are electric based perhaps some of cub. Perhaps try and get some more advice on this one.
I started off with a calmato high wing 40 with a Thunder Tiger 46 pro. Very stable glow plaform. High dihedrial so pretty forgiving, in fact it was quite difficult to get it to stall.
For electric I have an Easy Star II which is a throw launch as no under carriage and my son learned on. The ES II can have ailerons they come as optional but you need to get some additional servos.. It depends if you want an undercarriage or not. It can loop and roll if pushed..
The suggestions of a flight simulator are good, we have the Phonix and it does give you the basics and a chance to practise the moves you need to without clipping that tree or fence 8)
Its difficult as there are so many options. We are members of the local club, which has been great for local support. Some of the shops can be helpful Steve Webb and rcmodelcentre I have had good advice from in the past to name a few..
Well I hope this is a little more informative then my last post. I think it is a brillianrt hobby there are so many aspects to it. The flying, the building, the history of the planes (warbirds etc), we have just started doing some indoor flying at the club as well.
If there is anything I can help you with let me know.
Richard