To have a link update another frame, use the TARGET attribute. The value of this attribute should be the name of the frame that should be updated.
Using frames to target other frames go to:
http://www.htmlhelp.com/design/frame...targeting.html
In particular read the 'what no to do when using frames'
I personally never use frames, there are allot reasons why. Do a google search for 'Frames good or bad' for some intersting reading.
Wind is your friend
Matt