var tktype = {
  src: '/lib/tktypemedium.swf'
};

// You probably want to switch this on, but read <http://wiki.novemberborn.net/sifr3/DetectingCSSLoad> first.
// sIFR.useStyleCheck = true;
sIFR.activate(tktype);

sIFR.replace(tktype, {
   selector: 'h1', 
   wmode:'transparent', 
   css: ['.sIFR-root {leading:0;color:#003366;font-size:22px;}']
});