Kenny Anderson had a debut to remember as he stepped off the bench to help Scottish Championship leaders Hearts to a 3-2 away win at Livingston.Genero Zeefuik's fourth goal in four games since arriving at Hearts from FC Groningen broke the deadlock with four minutes on the clock.But in the 52nd minute Craig Sives netted against his first club to draw the home side level with a close-range finish after a long throw caused havoc.The in-form Zeefuik almost put them back in front just two minutes later only for his effort to fly just over the crossbar.Hearts' pressure was rewarded when Anderson, sent on at the break for his bow, nodded home Billy King's delivery with eight minutes left.And the points looked to be sealed when another King delivery teed up Jamie Walker two minutes later only for Brad McKay to foul Myles Hippolyte inside the box.Kyle Jacobs netted from the spot but it was too little too late.