A graphic looked good in Photoshop but looks very different in PageMaker. Why?
In general, trust Photoshop. There is a different “color engine” in the two programs and CMYK pictures especially can take on a strange hue in PageMaker. They should print from PageMaker the way they look in Photoshop. You may also have the Graphics display setting in Preferences as Standard rather than High Resolution; the former is better for speed of screen redraws — in Windows use Control-Shift as you place a graphic or as the screen redraws to temporarily display in high resolution (Command-Shift and any view selection on the Mac). But for first-time combinations of platemaker and/or printer, always ask for a color proof. Adobe has a number of technical documents on this, as they have on many of the points in this FAQ.