proline 21 CBT
as far as I know , the only one available is called "V.I.S.T.A". It is very expensive to buy for a private.
It is used by Flight Safety Int. during training on some GA airplanes proline 21 equipped as : Hawker, King Air, Challenger, Premiere.
The CD sent by Collins is just a "presentation" of the avionic system and it is not to be intended as a training tool.
I suggest the traditional way (user manual).
bye