It will work in 1.5 - meaning the 1.4 file will also work in 1.5, however if I recall it may be in a different location. You just need to do some creative file locating and moving - or use S3D to edit the 1.5 file.
This thread may help explain things rather than go through explaining it all over again here:
http://www.subsim.com/radioroom/showthread.php?t=143914
This is Anvart's outstanding mod and I do not have permission to post a 1.5 version other than explain what I did in my install but if I can make it work in my install you can too.... lol
Happy Hunting!
Art
PS: TMO already has this so if you're running TMO you're good to go.