Hi.
Rightly put by Mr.Aabid Baba. I agree that the new versions of optiwave products are only available for 64 bit operating systems. No latest version is available for 32 bit version. I would suggest you to look for older version if at all available with anyone. Rest you may contact optiwave support team as mentioned by Mr.Aabid.
Hope this is helpful to you.
Thanks
Regards