You creat it in Word, but you're going to be viewing it in a browser, right? If so, just put target="**frame_name**" in the <a> tag where **frame_name** is the name of the frame. I'm assuming you've named your frames. If not, just find the frame you want to link to and put name="**frame_name**" in the <frame> tag. I've not sure how you would do it if you were going to view it in Word, because I don't even think that you can have frames in Word.
Rick