[youtube]

[eXPerience™]

Sure:

Title:

Code:

Youtube

Short Description:

Code:

YouLarge Embeddable Youtube video

Regular Expression:

Code:

\[youtube\]http://www.youtube.com/watch\?v=(.*)\[/youtube\]

Replacement:

Code:

<center><div style="margin:0;padding:0;width:642px;"><div style="float:right;"><button onclick="MyBB.popupWindow('http://www.youtube.com/watch_popup?v=$1','youtube_$1',640,480);" style="background:url(http://s.ytimg.com/yt/img/master-vfl102488.png) 0 -658px;border:0;height:22px;width:27px;" /></div><object type="application/x-shockwave-flash" data="http://www.youtube.com/v/$1&amp;fs=1&amp;rel=0" width="642" height="388"><param name="movie" value="http://www.youtube.com/v/$1&amp;fs=1&amp;rel=0" /><param name="allowfullscreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="wmode" value="transparent" /></object></div></center>