@ canadaeh1234
i think that it doesn't matter if she did not finished her course, as long as she got in with Bow Valley, it would suffice.
the CIC will ask for your acceptance letter and school payment receipts from Bow valley nothing else.
and just a little tip, when writing your letter of explanation, make it short and don't tell them any unnecessary details about your history.
just tell them that "you got in with a 1 year course at bow valley college and that you are expecting to finish schooling after a year and that you plan to pursue your studies as a health care professional in canadal, however if things dont go as planned, i am going back to my country pursuing the course i graduated with" or something like that... thats how I wrote mine and i got my visa already. my program start is on May 2015 Practical Nursing. btw, i am already an RN.
hope this will help you.