Serbinski Accounting Firms

Is there a date limit for amending income tax for the 2006 year ? I've seen somewhere August 15. I should add this is related to amending my taxes to include form 8891.

I was not aware that I have to file 8891 form for the RRSP until this year when I saw the form in the turbotax. After reading this forum I start understanding that I have to amend my Income tax for the past years (2007 -2002).The question I have is which year I put in 6B (Enter the year the election...