I've got somewhere around 130K on both of my zetecs. As far as I know, both of them have the original pumps, and neither have given any trouble.

95 Contour Zetec, ATX (wrecked, sitting in the barn) 95 Mystique Zetec, MTX 2000 Taurus SEL 3.0L Duratec 1994 Crown Victoria LX 4.6 V8 1993 Chevy Silverado 4.3 V6