Yes, 3DS Max is to Poser as Photoshop is to MSPaint... :D Don't let that put you off though, I found the tutorials included on my demo of 3DS Max 5 were very informative. Anyway, lights. I managed this in Poser 5 by applying a square texture map with text on it directly to the Colour node of the light in the material room.

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"you are terrifying
and strange and beautiful
something not everyone knows how to love." - Warsan Shire