Get it work some variables and conditionals in header or navbar

[Scanu]

Hi all i'm looking to get it work this variables

{vb:raw username}
{vb:raw musername}
{vb:raw profilefield.profilefieldid}
{vb:raw profilefield.title}
{vb:raw profilefield.value}

and this conditionals

<vb:if condition="$show['profilefield_edit']">
<vb:if condition="$post['field6']">

in the header or navbar how do i? someone can help me?