I've not done it myself with a m2 card though. I would convert it to an opos card since there AU just now and the tit2 is not, unless your in a ex c&w area. But according to that thread above you can convert a m2 into a tit2.
you might want to check first matey. start cas studio/cardgenerator function and inset the card into the programmer to make sure the card is supported.
if it is supported you will have the option to erase the card.
yuo can buy opos1.04 from maxking for about £12 anyway.