Currently Waverazor is 64bit only on OSX. We support 10.9 and above, which is a 64bit only platform, so it seemed to make the most sense for our testing efforts.
However, that being said, what OS version are you running?
I can probably get compatibility back to 10.8.5... and presuming this is where you are running with 32bit hardware? -- I guess this is more common than I realized, and I am open to giving it a shot.