The plugin will probably compile fine for 32-bit, but working on the current bugs is the current priority. I might include a 32-bit version in the 2.0.0 release. (Honestly wasn't expecting anyone to actually still have a 32-bit Windows version...)
Well I would probably just switch to 64-bit for this but the problem is that Amarec is the only real method I can find currently that works well enough with SD capture, and no, direct capture through OBS isn't currently as good last I've checked. Though I guess if I really want I could just try switching back and forth for the time being and only use 32-bit for SD gaming as much of a hassle as it'd be.