[SEOvB]

open postbit or postbit_legacy and find

<div id="post_message_$post[postid]">$post[message]</div>

Replace with

<div id="post_message_$post[postid]" class="plinks">$post[message]</div>

Then in Main CSS -> Additional CSS -> add something like

.plinks a:link { color: red; }
.plinks a:visited { color: red; } 
.plinks a:hover { color: blue; }