If you have took IELTS already, send just a copy to NS as supporting your claimed points . If you haven't, just try to make a good guess of your english proficiency points then if you get your AOR you will have to submit your original results to your visa office and your score should reflect what you have stated obviously. So, try to make an accurate guess (you can find some IELTS practice tests around the web that may help you with this matter, check the IELTS forum). Even though it states in Schedule 3 to submit a copy, I got the idea it is not mandatory.