Playing on Mac - Error in your GUI XML files. Check UIErrors.txt

[Psyduck]

I'm trying to get a friend of mine up and running for P99, and she is so close to being able to play. When she tries to open up the game, the window pops up that seems like shes able to play, but the error listed in the topic title pops up: Error in your GUI XML files. Check UIErrors.txt.

Here is what UIerrors.txt says:
UIErrorLog created at Sun Jan 12 18:35:18 2014
[Sun Jan 12 18:35:18 2014] Warning: file EQLSUI.xml not found in directory UIFiles\default\. Attempting to use file from Default skin.
[Sun Jan 12 18:35:18 2014] Couldn't open or read UIFiles\default\EQLSUI.xml
[Sun Jan 12 18:35:18 2014] Error reading XML.
[Sun Jan 12 18:35:18 2014] Error loading skin: loading default skin instead.
[Sun Jan 12 18:35:18 2014] Warning: file EQLSUI.xml not found in directory UIFiles\default\. Attempting to use file from Default skin.
[Sun Jan 12 18:35:18 2014] Couldn't open or read UIFiles\default\EQLSUI.xml
[Sun Jan 12 18:35:18 2014] Error reading XML.

Can anyone help out?

Thanks!