How to resolve globetrotter connect problems with Mac

Hi,
For mobile internet on my system I am using Globe Trotter. It was working fine with Leopard 10.5.8.
Now I am upgraded to Lion 10.7.
Whenever I tried to access the globe trotter it gets crashes and blocks it.
To resolve this issue I uninstall and then reinstall it, but not successful.
Please tell me how to resolve the issue.
