You can use the service recommended by enTourage on their home page:
http://entourageedge.com/ which is:
http://www.supportrix.com/SUPPORTRIX/Main.php?do=_HOME.
Was it working before? When did it stop working? Maybe some of the smart people on this forum can help with a little more information. Supportrix you have to pay for, which seems a shame after only 6 months.
Welcome to MobileRead! Sorry about the circumstances.