As Vicki said, your post is a little unclear as to what you are asking. If you have a June use year, you can not go to Disney and say, "I don't want June anymore, I'd like August." Use years are assigned by unit and deed, so you can not juy change your use year.
If you want to transfer AUgust points into you account from another member, yes, you can do that, with the caveat that Vicki mentioned, they retain their home resort and use year.
They also have to be in the same use year "year". For instance, June is now in the 2012 use year. If someone has August 2011 points, they can not transfer them to you. It would have to be August 2012 points.