i’m trying to put a html code right onto my website.

I know nothing about html, but picasa has a cut & past script….
but when I embed it onto my sitebuilder (hostgator) and go to publish the page - it still looks like the below (even when published) What am I doing wrong?

(I’m trying to put a slideshow right on the site - and the below is the cut & paste from picasa)

<embed type="application/x-shockwave-flash" src="http://picasaweb.google.com/s/c/bin/slideshow.swf" width="288" height="192" flashvars="host=picasaweb.google.com&RGB=0×000000&feed=http%3A%2F%2Fpicasaweb.google.com%2Fdata%2Ffeed%2Fapi%2Fuser%2Fpaintedperformancehorses%2Falbum id%2F5268355045795377041%3Fkind%3Dphoto%26alt%3Drss" pluginspage="http://www.macromedia.com/go/getflashplayer"></embed>