Villa's boss handed England's Darius Vassell his first start since returning from the World Cup as he gambled on an extra striker in the latter stages. But the visitors were unable to maintain their composure and paid the price.
Uncertainty over Peter Enckelman's fitness let Taylor blood summer signing Postma.
Despite Villa's dominance they were thankful for two pieces of wayward finishing from Philippe Brunel.
The winger lobbed wide after a pass over the top, then, after Postma had raced off his line to punch clear, failed to find an empty net.