hiHey , All the three documents you mentioned are not requested by CIC because they already have information about the same:-
1.Ielts - You provided the IELTS form number during profile creation.
2.Birth Certificate :- The soft copy of your passport will have all the information that your birth certificate would have.
3.Work Permit :- The UCI number provided will give CIC access to all the permit/permits related to you.
Hope this answers your question.
thanks for the reply!
but regarding the uci, where do i enter the uci? the questionnaire never asked me to enter the uci number! :O