ronzcani

You can center it through css. Below is not the right way to do it but it will solve your problem

Change

<div class="col-left col-cl">
<div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>

To

<div style="margin: 0pt auto; display: block; width: 660px;">
<div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>

Change the width on this CSS on your style.css

#access .menu-header, div.menu, #colophon, #branding, #main, #wrapper {
    margin: 0 auto;
    width: 940px;
}

On single-portflio.php please try to delete this whole code to remove details and copyright

<div id="p-left-wrap">
<?php
  $custom_fields = get_post_custom();
  if (strlen($custom_fields["details"][0]) > 0){
  $my_custom_field_details = $custom_fields['details'];
  foreach ( $my_custom_field_details as $key => $value )
  echo "<div class=\"p-left pinner\"><h4>Details:</h4> " . $value ."</div>";
  }
?>

<?php
  $custom_fields = get_post_custom();
  if (strlen($custom_fields["copyright"][0]) > 0){
  $my_custom_field_copyright = $custom_fields['copyright'];
  foreach ( $my_custom_field_copyright as $key => $value )
  echo "<div class=\"p-left pinner\"><strong>Copyright:</strong> " . $value ."</div>";
  }
?>
<?php
  $custom_fields = get_post_custom();
  if (strlen($custom_fields["location"][0]) > 0){
  $my_custom_field_location = $custom_fields['location'];
  foreach ( $my_custom_field_location as $key => $value )
  echo "<div class=\"p-left pinner\"><strong>Location:</strong> " . $value ."</div>";
  }
?>
<?php
  $custom_fields = get_post_custom();
  if (strlen($custom_fields["models"][0]) > 0){
  $my_custom_field_models = $custom_fields['models'];
  foreach ( $my_custom_field_models as $key => $value )
  echo "<div class=\"p-left pinner\"><strong>Models:</strong> " . $value ."</div>";
  }
?>
<?php
  $custom_fields = get_post_custom();
  if (strlen($custom_fields["year_completed"][0]) > 0){
  $my_custom_field_year_completed = $custom_fields['year_completed'];
  foreach ( $my_custom_field_year_completed as $key => $value )
  echo "<div class=\"p-left pinner\"><strong>Date:</strong> " . $value ."</div>";
  }
?>
</div>

Don’t you have any Custom css options on your theme? MAybe on the theme options? But if you want to do this here, you can achieve this by adding this after get_header(); ?>

<style type=”text/css”>
body.single-portfolio #content #p-left-wrap {
display:none;
}
</style>

But this not the right way to do this.

What plugin are you using?

You can add the meta tag below or after this:
<meta name=”p:domain_verify” [moderated content] />