So the UCI (Client ID) that your WIFE got as a sponsor from stage 1 is ONLY good for monitoring e-cas changes of STAGE 1 on e-cas (which you are done with now, so no use watching that lol). When POS sends you a letter saying they received your file (AOR), they will give YOU (applicant) your OWN UCI to check for e-cas updates on STAGE 2 processing. They will also give you File number (F000XXXXXXX). You can use YOUR (applicant) UCI or File number and the APPLICANT information to sign into e-cas to check for STAGE 2 updates. Because you have been involved with immigration before, YOUR (applicant) UCI from the past may still work since you are the applicant again in this case. UCI does not usually change (once you have one, it's yours for life usually). So, what I'm saying is... You don't have a file number and you can't use the sponsor UCI to sign in, but if you can find/remember your OLD UCI from other apps, you can try signing into e-cas to get information about the POS processing. Go here
http://www.cic.gc.ca/english/index-can.asp Click check application status, then click PR outside of Canada, then click simplied application, then agree to all the crap, then enter YOUR OLD UCI from past sponsor applications FOR YOU (if you have it) and YOUR info (not the sponsor info, only the applicant info) in the fields - it asks for DOB, etc (this is YOUR info, not your wifes) and YOUR old UCI number and you MAY be able to sign into e-cas for stage 2 if they have updated your info in POS already. If you can't, you'll have to wait for your AOR to use your new file number.
Hope that helps
