This is great news. I was more than certain that the show was getting axed, especially with the American Dad renewal. With a short order (no pun intended) of 13 episodes, I'd expect to see this come back next Spring, once they're run through the gamut of AD/Cleveland episodes early in the fall.
If you got turned off by the admittedly-awful first episode, give it another chance. You won't be sorry.
Nielsen actually delayed February sweeps because they didn't want to be affected by DTV switch problems. The 2009 "February" sweeps run March 5 to April 1, and then the May sweeps run April 23rd to May 20th.