Are you aware of this?
To prevent the build-up of an unmanageable number of new applications during these consultations and to further reduce the 165,000-strong backlog of parent and grandparent applicants, CIC is putting in place a temporary pause of up to 24 months on the acceptance of new sponsorship applications for parents and grandparents. The pause comes into effect on November 5, 2011.
http://www.cic.gc.ca/english/department/media/releases/2011/2011-11-04.asp