Which style did you add the changes to? I see you have multiple styles and I don't see the additions on the default one when looking directly at your .css file. It looks like there might be changes to the hover color, but not the link and visited link sections.

Also forgot to mention on the topicsubject one you'll need to do the same for the alt-topicsubject new-topicsubject and new-alt-topicsubject.

But I'd start with just working on the .forumtitle one for the forum titles until you get the hang of how it's changed.