I can't find a button for set up ILS frequency, I can't find it on COM panel. who can tell me where it is located.

Please, read the 744 manuals.Once you have an active route in your FMC with an arrival runway selected, the FMC NAVRAD page will automatically tune the ILS frequency for that runway.Jose Luis

.....and if you press your NAV/RAD button on the CDUyou can check your ILS freq. It comes to live when youhave som 75-50 Nm left to your destination./ Leffe

.......or you can type it in manually (in the NAV/RAD page)Michael