What exactly are you having problems with? I'm not getting much for the current Hackman web page since I have javascript dissabled, though their programs index works fine. There are other places to download it. It requires some Visual Basic runtime files, if you are getting an error message about missing files.

Maybe you would find Frhed easier to use? Make a backup before editing any file, though. IIRC, Frhed writes directly and immediately to the file as you edit, so there is no undo.