When the Mac reports that the 'developer can't be verified' it doesn't mean that the program won't run, or even that the program in question is dangerous. Your computer won't explode if you try to run software that is too old to function. You have nothing to lose by downloading it and trying it. It will either install and run, or it won't.
No software for the Mac is 'too risky to install' just because it hasn't been in development for a few years. Click to expand.I'm guessing that you are new to the Macintosh?
