This picture shows about where normal operating temperature is:
2011-03-12_17-31-21_916.jpg

A normal 195 degree thermostat will open right about when the needle gets just past the large white line where the needle is about right now. In the meantime, fill your radiator up each day if it's low and keep an eye on it. Like koRnhead said, it's probably just low and needed to be bled out a bit.