As I said, those aren't instructions for an end user (meaning people actually installing the software). Those are instructions for companies making an installer with InstallShield. Hence why I said they offer no solution for you. That's the website of the company that makes InstallShield, and they don't offer technical support for games that use InstallShield. For that, you'd have to go to the company directly, but since the game is 6 years old, you might not have much luck, as they no longer support it (it's not listed on any of the associated companies' support pages anymore).
Your best bet is to take the time to search around through Google or whatever search engine you prefer, and gather up some solutions. I've seen them out there, but I don't have the time just now to search for them for you.
Search for "fable installshield error 1610", without the "-". Try other variations, like "installshield error 1610".