For Digital Cameras, (Nikon) do you multiply the 1.5 factor to every lense or is that just for the film lenses

The 1.5 multiplication factor goes for all of Nikon's lenses, including Nikon's DX (made for digital) lenses. It also goes for all third party lenses when used on a Nikon dSLR.
The focal length of lenses is still indicated as it's always been. The multiplication factor is due to Nikon dSLR cameras having a sensor that's 1.5x smaller than a frame of 35mm film.
(I use a D200 with a variety of old and new lenses.)

1st answer is correct, you have to multiply when you compare against a film camera.

As the others said. The 1.5X focal length multiplier applies to any of ther Nikon SLRs. 35mm film has a focal plane size of 24x36 mm. The Nikon SLRs are approximately 16x24 mm.

Note that the 1.5X factor wouldn't apply if Nikon ever produced a "full-frame" digital SLR. So far only Canon has this with their Mk II series. Cough up $8K+ and one can be yours too.