I would like to find out some information on international rugby union
statistics. In particular how often does Matthew Burke, who plays for
the NSW waratahs and Australian Wallabies, hit the posts when kicking
at goal compared to other players? If possible I would like a top ten
list of goal kickers who hit the posts the most.

this is going to be a tough one to find data on. You should be able to
find out how many unsuccesful kicks at goal he's had, but I doubt
whether anyone would keep stats on whether a kick hits the posts or
not. Also, do you include kicks that hit the posts and still go
through for a successful goal?

A tough one for the researchers... good luck!