hi noubi . am moroccan too am married to a canadian woman and we are working on the application forms so listen to this . ian see that u are married to this woman from quebec all u need now is to go to this link
www.cic.gc.ca and click on applications and forms and fill ur forms and tell her to fill hers . thats the first step .
if ur wife has sponsored an ex man before she has to state what kind of relationship she has with him if marriage then she needs divorce paper and if conjugal or common law parntner she will also need a paper of separation to prove that she is over with him . she has to state info abt him in the forms too , so its not a problem at all as long as she has all the proofs and documents .