Aperture 3.0 or no copy to HD >>

Say what now? Using standard grammar and typing conventions makes it a lot easier to understand you.

Have purchased another aperture v3.0; called apple tech support "cReative media". 

I have no idea why you're buying an app that was killed off 5 years ago, especially in a form that was killed off 7 years ago. I have no idea where you're buying it, but really, you should stop. It's a pointless exercise. Apple do not make Aperture any more. It is no longer developed. It's as dead as a dodo. I've no idea who is selling you these disks, but really, they should stop. "Creative Media", whoever they are, are not Apple tech support.

I'm afraid the rest of your post makes little sense to me. But I would suggest that the reason you've spent 40 hours on the phone dealing with this issue is because you're on a fool's errand.

You write: " Now how do I get that to install from my older version of 3.6?"

Do you already own Aperture 3.6? If you already have Aperture 3.6 installed on some Mac you can copy it to any mac you own. You do not need an istaller. Just copy the application from one Application folder to another. It will run on any mac with a compatible system version macOS 10.10.3 Yosemite to macOS 10.14.6 Mojave. But Aperture is incompatible with any newer system version since macOS 10.15 Catalina.

Sorry but your question isn't clear.

If you're trying to upgrade from a disk version of Aperture 3 to 3.6 there is no way to do that.

What version of the OS do you have?