For all you players who like the test realm, I have made this video to help you install it so it works with CrossOver!
http://www.youtube.com/watch?v=kwwBfEdTXEM
Here is a written guide:
Download the test realm from here *Note, you can only download it when the test realm is online!* https://www.wizard101.com/game/testrealm
Open Crossover
Go to Configure at the top and select "Install Software"
In "Select a application to install" find "Other application" this option is for software not listed as "Supported Applications" like our test realm.
Now click on "Select an Installer" and find the Test Realm exe file you downloaded and click on it.
Now click "Select a bottle into which to install" and click your already made Wizard101 bottle then click "Install" at the bottom. Since both the test realm and the regular game are exactly the same it will run perfectly.