If you feel like working on that port your self, you should write to the mailing list and let us know. You should get the latest 1.9 version. If you want the most stable version and don't care about lacking features, you should use 1.9.20. However, you are encouraged to give newer versions a try. There are many ways.
Lets begin with the ugly way.
It is ugly because you have to execute the HB binary once for every HTTP requests. The decent option is to call Perl from HB, not the other way around. This will allow you to embed Perl code inside of your HB files. HB will take care of it and execute it. First you will need to download a recent version from our downloads page.