Most of your questions are answered on allnurses.com; I know because I asked them all! Type the keywords of your question in the search box or just Quebec and the threads will pop out.
One of the very thorough moderator gave us the link for the salaries; I just copied the link for you here. I still don't know how they count the "echelons/steps". I was told that it is about 1 step=2 years of experience. If you have a bachelor, you get up there faster.
I went for an interview and I was assured that our prior experience as a nurse is compensated in their step calculation, although, I still don't know for sure if it is equal, the interviewer was new to the job and did not know. I suppose that when I will really need to know I should contact the FIIQ (Federation Interprofesionnal...du Quebec); the nurse's union.
As for my case, now my US education was approved and they want me to do the "Professional Integration Program for Nurses" for 30 days. Apparently they should pay for it... still a pain to get an appartment near the college or the hospital... blabla and hope the OIIQ say OK, now you can go sit for the exam.
Well, good luck!
You have a lot of :typingahead of you and a lot of infos to get started.
Let us know how things go,
I might see you in September for the exam.