Didn't see it on RTSR....
I searched for where "Alabaster White Thing" came from and found this old thread circa 2007 (my goodness, 2007 suddenly seems like a long time ago!). Anyway, this description ~2011 makes it sound like AWT was not on the UW demos circa 1990, but rather an extra bit by R&K.
http://www.borndirty.org/forums/show...?t=5769&page=4