Finding and Editing Code in VB4?

[Percocet]

I have several things I need to edit unfortunately I cannot find them and when I think I have or should have found them instead of the "tag" and the "text" i need to edit like this:

<li><a href="usercp.php">Settings</a></li>

I find something in its place like this:

<li><a href="usercp.php{vb:raw session.sessionurl_q}">{vb:rawphrase control_panel}</a></li>

In the above example i wanted to edit the text of the usercp button but couldn't.

Can someone please tell me was i in the wrong place? what that code is? and where i go to learn how to edit it? Thanks