Through Congressman's office. 回複：Do you get a letter from USCIS?

We contacted our congressman's office and they replied today with this:

'I received an email from USCIS today, your application are in adjudication. They said if you have not heard anything by 05/13/08 to contact them. '

However I'm not sure if USCIS is really doing anything, though. They are just notoriously bureaucratic.