So I know how it can be complicated to get Wizard101 on a Mac. I found out an easy way. Go to the Wizard101 website ON YOUR MAC. On the left side, click see the game. Click download Wizard101. It will say you can download crossover. Click the link and download it. Then, download Wizard101. Crossover can be pricey ... $50 for 6 months. You can get a 14 day trial so if you want to save some money you can just keep getting the trial and re-downloading Wizard101. I just found this out a few days ago and Wizard101 runs GREAT on the Mac. It rarely freezes and it runs really smooth! I hope this helps!
Sincerely, Robert DeathHunter Level 71, Transcendent Thaumaturge