Also what is quite helpful is using the ILS display instead of the Map display during the approach on the ND as it will show you very clearly the track line and the ILS course.
If the deviation bar is centered, all you have to do is keep the track line super imposed over the ILS course bar.
This will allow you you to look 'trough' the FD because you now have the raw data on which the FD makes its command in front of you.
On a NG's with GPS, the track line is generally spot on unlike some -300/400, which use IRS and can have obsolete magnetic variation information.