Harshajv,
Download the newest version that Uwe posted (link below)…I am using it successfully with Mavericks 10.9.1 MacOSX.
http://www.uweschmidt.org/files/WiimoteWhiteboard-10dot8_and_later.dmg
Java is required. If not installed, download from http://support.apple.com/kb/DL1572