Theme Installation

I appreciate Tammie for successfully installing FrameMarket on my wordpress site.

However, I still do not know what I did wrong.

I clicked "download" for the FrameMarket link and I took that entire file and uploaded it to my admin WP web interface and installed it.

It gave an error, and I was told by Tammie (WPMU staff) that is was because the whole theme wasn't installed.

That's good to know, but if I had to do it over again, I don't know what I would do different.

Was it because I did not do it manually on the FTP originally? Was it because I need to install the child themes separately?

Thank you in advance.