For more information go to https://www.bt747.org
From the current location, you can:
Try the desktop version of BT747: BT747_J2SE.jnlp
Install the desktop version of BT747: BT747_J2SE_Install.jnlp
Development version: BT747_J2SE_Latest.jnlp
Install development version:: BT747_J2SE_Latest_Install.jnlp
Launch development version using RXTX2.2:: BT747_J2SE_Latest_rxtx2_2p2.jnlp
Install development version using RXTX2.2:: BT747_J2SE_RXTX2.2_Latest_Install.jnlp