Let's see if I can remember this, it still doesn't work sometimes and I could never work out why.
in the body tag use link="colour" alink="colour" and vlink="colour"
LINK sets the colour for hyperlinks. ALINK sets the colour of active hyperlinks and VLINK sets the colour for visited hyperlinks.
An example would be (didn't show due to it being html):
< body bgcolor="#000000" link="#FF0000"alink="#00FF00" vlink="#0000FF" >
This would set links to red, active links to green and visited links to blue.