Darron,
Many modern flag makers have the stars with a point going straight up when, as noted here already, the points aim towards the tops and bottoms of the blue bars. These flag makers are doing it wrong (among other things).
Ken is right - there is no regulation that exists that states which way the stars should point. In fact, on almost all CS flags of any type that have stars they tend to be tilted one way or another. I have seen this on pre-war flags too.
Greg Biggs