TCPDF: How to have different headers/footers on different pages?

I'm using TCPDF to generate PDF documents on the fly from a database.

I need to use custom headers:

http://www.tcpdf.org/examples/example_003.phps

(from http://www.tcpdf.org/examples.php)

BUT, have hit two problems:

1. I need to suppress the footer on page one, so as not to have the page number on the title page

2. I need to vary the text in the header on each page.

I've tried calling a new Footer before each new Addpage:

class MYPDF extends TCPDF {

    // Page footer
    public function Footer() {

      if (!isset($i)) $i = 1;
      else {
        // Position at 15 mm from bottom
        $this->SetY(-15);
        // Set font
  $this->Cell(0, 0, '', T, 1, 'L', 0, '');
       $this->SetFont('helvetica', 'B', 12);
        // Title
        $this->Cell(30, 0, 'Design Out Crime ', 0, 0, 'L', 0, '');
       $this->SetFont('helvetica', 12);
        // Title
        $this->Cell(100, 0, 'Your Personalised Advice', 0, 0, 'L', 0, '');
       $this->SetFont('helvetica', 'B', 12);
       // Page number
        $this->Cell(0, 0, ''.$this->getAliasNumPage().'', 0, 0, 'R', 0, '');
      }
    }
}

But it only seems to take the first footer defined.

Can anybody help?