I have a Windows 8.1 on a VirtualBox with Delphi XE5.
On my Mac OSX 10.9.1, I installed the package PAServer version 4.2.0.05 and executed with no password.
PAServer is not stable at this stage. There are MANY reports about this:
PAServer can't load dyld: Library
Delphi XE5 PAServer Unauthorized user
How can i debug my DLL project with Delphi's PAServer
Delphi XE4 iOS can't connect to PAServer
https://stackoverflow.com/questions/28115855/paserver-crashes-on-win64
Delphi Mac OS X
Solution: wait until they release something stable. (You will have to pay again, of course)