Before you can file your FEC reports through BlueUtopia, you must have an electronic filing password from the FEC.
If you have registered your committee but have not yet applied for your electronic filing password, you can use the FEC’s Electronic Filing Password Request webpage here: http://www.fec.gov/elecfil/passwords.shtml
Once you have your FEC electronic filing password, you will need to configure it in your system. See here for how to add your password to BlueUtopia.