Too many CSS

Inspecting the websites elements & changing the layout to suit my needs, i find that the server here is confused as to which css rule should be treated as the primary.

If i inherently change link properties from forum-style.css

a:link {
 color: #FD6400;
 text-decoration: none;

to

a:link {
 color: #0000FF;
 text-decoration: none;

Then all links should be blue?

JB_AU:
Then all links should be blue?

Yes, but you have to modify the a:visited rule to correct also the color of links you already opened.