[deathemperor]

1.
if you want to modify the images, they are somewhere in images/status I forgot.
if you want to modify the html code, they are in FORUMHOME template and only there. Read around FORUMHOME template and you should find where to add forum_link.gif legend.
2.
go to your ACP --> Vboptions then turn off the HTML popups, I haven't tried this before though. In case it doesn't work you can easily customize it yourself if you know HTML. I've done this in my board without turning off the HTML popups because it's still useful on other parts.

hope it help.