By Dawn Wotapka Of DOW JONES NEWSWIRES NEW YORK -(Dow Jones)- For builder Toll Bros. (TOL), the spring selling season--which kicked off with the Super Bowl--is starting off similar to a year ago. With 2010's results pumped up by the federal home buyer tax credit offering buyers up to $8,000, this year's demand could be organic. While that's good news, the Horsham, Pa.-based builder remains cautious, executives said in a conference call of with analysts and investors. Earlier today, Toll reported a fiscal first-quarter profit of $3.4 million, or two cents a share, compared with a year-earlier loss of $40.8 million, or 25 cents a share. Excluding write-downs, it swung to a pretax profit of $8.1 million from a loss of $23.4 million. Revenue climbed 2.3% to $334.1 million. Shares of TOL, the only builder in positive territory, are up 2.41% at $21.26. -By Dawn Wotapka, Dow Jones Newswires; 212-416-2193; dawn.wotapka@dowjones.com