The Fed's number goal was to hold rates down, so yes that is not working considering rates are up over the last month.
Where were yields before Bernanke gave the green light to QE2 back in July/August compared to today? Market's anticipated QE2 well before it was implemented. In addition, the economy appears to have improved since August, there has been an asset allocation shift from treasuries to riskier assets (equities) and thus yields have risen. Not surprising. If things continue to improve, rates will go moderately higher and the Fed can move QE2 to the sidelines. If the economy slows or shows signs of continued sluggishness, the Fed will continue QE2 helping keep yields at or below current levels. I think the move up in yields over the past month is being completely blown out of proportion.