Does Betonline Poker version 8.2 run on Windows XP?
Yes, the client works on Windows XP. I've tested the setup package on Windows XP, 7, 8, and Windows 10, and it's working just fine. For higher versions of Windows above XP, you will have to use the Run as Administrator in order to launch the client.
Download it from the following page: http://betonlinepoker.org/betonline-poker-download/