I wouldn't suggest doing this in template files but you could try:
Code:
{php}
$userinfo = func_userinfo($login,'C');
echo 'Welcome ' . $userinfo['first_name'];
{/php}
In home.php
FIND:
# Assign the current location line
BEFORE ADD:
Code:
if (empty($cat))
$smarty->assign("currentUser",func_userinfo($login,'C')) ;