Sims 3 Mac guide: HELP.

I am very confused on how this installation process is working perfectly for everyone else using macs except me...
As stated on the 'Sims 3 Mac Guide' I have followed all the instructions to great detail. When I am told to make the new .iso file using Terminal, I do so. This works and when I click on the new Sims3.iso file I just made it is automatically mounted like it said it would. But inside the mounted disk image there is no 'The Sims 3 Installer' .... Just a bunch of random files that I don't know what to do with....

Can somebody help me?

Thank you.

I think people were having issues with this before and that that the torrent used in the installation guide was removed or replaced or something like that. But Dale posted a different way of installing the base game: https://games4theworld.forumotion.com/t1142-update-read-before-posting-anything-related-to-the-sims-3

I haven't used this method myself though. Also make sure you used Stuffit Expander 2009 to unrar the files after you get them installed.

It didn't work

Did you copy all the files from the .rar you expanded into the disk image?