Here is the solution;download wincrc from http://www.digital-digest.com/dvd/downloads/wincrc.html and read the readme!!!Find a devoted fhmaniac with a working copy of original fh(say from fhmod irc channel.After u've setup properly it takes 2-3 minutes to fix the crc.Winrar fix thing didnt work for me and i've solved my corrupt file with this program.
I had a CRC error with the 2nd file but when I tried to run it again it worked. So, before you think its corrupted and download it again, just try to run it a couple of times.
With the 0.61 installer I had similar problems, the installer aborted with CRC error, and everytime I retried it interrupted due to CRC error on another content file. So I guess these problems stem from flaws in the install builder.