The official website of the product is down. This might be a reason why you can't use the program anymore. To resolve your problem, you can use another tool that have a similar functionality with this one. I suggest you to have a look at Vidalia. This tool is protecting the user's privacy by connecting to Internet through a series of virtual tunnels. To be noticed that this application is free and you can obtain a download link from its review page from Software Informer.