Ford Motor Co. said Tuesday that sales of its popular Ford Explorer were on target for August despite the recall of 6.5 million Bridgestone/Firestone tires, most of which were installed on the best-selling sport utility vehicle. Ford spokesman Ken Zino had said Monday that the company had seen a "temporary slowdown" in Explorer sales, and that one of the reasons the company had taken the action it did was to stave off any long-term effect on sales.