A quick search finds this thread asking the same questions: http://www.canadavisa.com/canada-immigration-discussion-board/wes-basic-or-icap-course-by-course-or-document-by-document-t234302.0.html
1 - Please ensure you choose WES Canada and not WES USA. The site looks the same but there is a Canada Flag on top. Ensure its Canada WES or else its not valid for CIC
2 - Please ensure you pick only the specific Canada CIC package. The others are for students, colleges, jobs etc and not valid for CIC.
3 - The total price for WES Canada package including 85 Dollars for Courier service comes to 322 CAD.
4 - I recommend you pay extra for the courier service. It will come in a max of 5 Days once evaluation is complete. If you chose standard, expect it to reach you in a few weeks to a max of 2 months depending on where you live.