As I wrote early in our blog, the latest version SCCBridge allows accessing to SCCBridge server via proxy. Here is some explanation what you should do in order to establish such connection:

1) open RepositoryExplorer;
2) click “Settings” button;
3) set “Default service URL” property to “http://proxy:1234/BridgeServer/Repository.asmx” ;
4) set “Endpoint URL” to “http://serverhost/BridgeServer/Repository.asmx”;
5) click “OK”.

Now you can do login.

P.S. Pay attention that “serverhost” is a host name used by proxy to route requests to.