Ok, what version of Presenter are you trying to install? 7, 8, 9, 10?
What version of PPT are you using? 2007, 2010, 2013?
You mention that you have the 32 bit version of PPT. That is the version of Presenter that should install. The 64 bit version of Presenter should only install if you are running a 64 bit version of PPT. With Presenter 10, the installation should automatically detect which version of PPT you are using (32 bit or 64 bit) and install the appropriate version.
I'm attempting to install Presenter 9.0.
My Powerpoint is 2010, 32-bit.
When the installation module loads, I click 32 bit, it installs 64. I open the folder and click the 32-bit exe file, it installs 64 bit.
You may need to re-download the installer or call Adobe Support to see if they can identify why it is installing incorrectly. Support can be reached at 800-945-9120.