how good is Helicon at focus blending under- or over-exposed areas?

Can HeliconFocus handle files that have been tone mapped in Photomatix? I read that such tone mapped files have 32 bit channels. I also read on this site:

"Helicon Focus supports JPEG, TIFF, BMP, PSD and various RAW formats with 8 and 16 bits per channel."

Does this mean that I won't be able to do ...