You just need to get points that would be eligible for travel during June 2011.
Those would include points from Aug 2010 UY through June 2011 UY. If you get Aug, Sept, Oct, or Dec 2010 UY points, it would count as your one and only 2010 UY transfer.
If you got points from Feb, Mar, Apr or June 2011 UY, then it would count as your one and only 2011 UY transfer