Hi Lazar
Yeah that is n issue with the trial version , they are only offering a trial version for on 64-bit Operating Systems. I would suggest you to contact the support team of Optiwave they should certainly provide an option for 32-bit Operating systems as well. For the time being why don’t you download optisystem 13 in case you do not require some newer components included in optisystem 14.
Regards
Burhan