Help with ps3 game procedure?...

So, I understand that rpcs3 comes with a quickstart guide, but it explains how to process all the iso information from the disc....
I'm kind of new to this, and I don't really understand what it is I'm doing. I've already been able to make some titles work well on dolphin after processing them with Nkit, but I don't understand what I'm trying to achieve with this ps3 Minecraft copy I downloaded.
So, I'd appreciate it if someone could explain what procedure I have to go through, or at least redirect me to a webpage that explains what to go through with what you download here.

Also, I was going to try to download Resident Evil 5: Gold edition, but there doesn't seem to be a download button for it. Has it not been uploaded yet?

"Don't get angry if you won't explain yourself"