XB-70 Valkyrie help

I have downloaded many XB-70 and all exhibit the same problem. The nosewheel landing light does not show up when looking through the cockpit panel window in FSX. The landing light does show up when looking at the aicraft from an external view. My question is this, does anyone out there have an XB-70 that does have the landing lights visible through the cockpit window and would it be possible to get a copy of your .MDL file. I am sure it is in the .MDL file but I cannot edit this file. Thanks