Among the earnings stories for Wednesday, March 10, from AP Financial News: ¿ The Children's Place Retail Stores Inc. reported that its profit dipped in the fourth quarter even as shoppers boosted sales. ¿ Vail Resorts Inc. said its fiscal second-quarter profit dropped, hurt by the timing of some real estate project closings. ¿ Speedway Motorsports Inc. said its fourth-quarter loss widened as tough economic conditions depressed revenue from racing events and expenses grew. ¿ Specialty metal and plastic products company A.M. Castle & Co. said its fourth-quarter loss shrank, helped by lower material costs and the effect of one-time charges. ¿ Development-stage biotechnology company Discovery Laboratories Inc. said its fourth-quarter loss narrowed on lower general costs and development expenses for the drug candidate Surfaxin.