OH ok I forgot something...

for the @ addition search for
$username=$loggedin[username];
$location=$loggedin[location];
on line 143

directly underneath it paste
$locationLink = $location;

if you look about 10 lines more below you'll find
$username=$loggedin[username];
$location=$loggedin[location];
again paste
$locationLink = $location;
under it

So you'll end up with 2
$locationLink = $location;

Should work now
Hope this helps