embed YouTube video

I am trying to embed video from Youtube on my Home Page in side box.

Using the text below, I pasted in the web address to change from one video to another and now can’t get it to work. The box is simply blank. It worked fine before but when I tried to change it by pasting in a new address nothing is visible. Here’s the text with new address.

<div aligin=”center”><object width=”299″ height=”198″><param name=”movie” value=”httpv://www.youtube.com/watch?v=45HPl9t6avY&feature=mfu_in_order&list=UL”></param><param name=”allowFullScreen” value=”true”></param><param name=”allowscriptaccess” value=”always”></param><embed src=”httpv://www.youtube.com/watch?v=45HPl9t6avY&feature=mfu_in_order&list=UL” type=”application/x-shockwave-flash” allowscriptaccess=”always” allowfullscreen=”true” width=”299″ height=”198″></embed></object></div>

I downloaded and activated Smart Youtube plug-in but cannot find how it works.

Thank you!