Need help with custom userbar

I got my block all set but I cant seem to figure out how to make the username display...
I need the server side to call on the user name.
If someone could share the php code bit i would appreciate it.

For example, I need the server side code to make this work:

Code:

Welcome !USER_NAME_HERE!
*or*
<a href="!SITEROOT!/user/!USER_NAME_HERE!">

thanks.

on which pages that bar will be displayed? i.e. home, category, game, user, custom, any of those?

On pretty much every page.
I just got the username to work.
The code I was looking for was:

Code:

"!USER_NAME_HERE!" => $_SESSION['username']

but now my issue is how to change the options of the bar according to the users status.

example being:

Welcome Guest
VS
Welcome User


I need the code to do this:

Code:

If :
User logged in
Display:
Block_1.html

If:
User logged out
Display:
Block_2.html

If that makes any sense to you...

Ok, figured that out too. haha
This seems to work fine:

Code:

//This works like a charm

if ( isset($_SESSION["user"]) && !empty($_SESSION["user"]) )
{
$tpl->define( "tplUserbar", "block_userbar.html" );
}
else
{
$tpl->define( "tplUserbar", "block_userbar2.html" );
}
$tpl->parse( "USERBAR", "tplUserbar" );

Hope this helps anyone who wants to do some custom stuff.