As noted by Sinclair, Rudd voted in favour of Peter Slipper being retained as Speaker. Here is the record of the vote in Hansard. Rudd’s name is clearly in the no column. Note I was wrong in claiming that Katter voted – he did not attend the division and was not paired.
More generally, perhaps we need to develop a searchable Parliamentary voting database such as the US Congress Votes Database to easily find whether an MP has supported a motion.