here is the link http://www.cic.gc.ca/english/pdf/kits/guides/E37048.pdf containing the Buffalo office specific instructions for the sending the Federal Skilled Worker immigration application.
Normally official sealed transcripts are sent along with your application. IELTS score can be sent directly to cic buffalo office. I do not know the department code the CIC buffalo office. You can also send IELTS report along with your application.
Important do not forget to fill N/A to the fields in forms which are not applicable to you. Do not leave any field empty on the forms otherwise they would send your application packet back. If you are sending to Buffalo and your are on a visa here then you must send them your visa document such as I-20 (If your are a student) or H1B approval document along with your stamped visa on your passport.