ill

I installed Abrosia but I can't run it because it's a DMG file. I even installed a program to open DMG files, but when it opened, it just showed me 3 columns of numbers and encrypted code. I'm obviously doing something wrong here. Help? Apologies if this is in the wrong section or I've re-asked a question, but I'm getting extremely frustrated.

First and foremost, excuse my extreme noobness and ignorance. Second, do people still sell non UC Pets in this site? If so, then: What currency is used- NP or real money? Is there a guide to prices somewhere? What is the safest way to go about selling pets? Thank you in advance.