i think i might have made a mistake upgrading to 3.80 m33 is there any downgrader for it?

im looking for a special cintro can any1 provide a download link for it please

<object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/azmvtymUlxI&rel=1"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/azmvtymUlxI&rel=1" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>

incase the video doesnt work here is the link