563975 Quick Job 2 small things on HTML site

I have a simple html site. I need 2 small things done. 1) I embedded a youtube video on my site but I want to change the video thumnbail to my custom thumbnail. Here are instructions: [login to view URL] 2) I have a few 1 line text. I want the text to rotate every 3 or 4 seconds with new text. Like on this website [login to view URL] See the text rotating beside the womans picture. Simple Javascript or something, I need to be able to edit it myself in the HTML code. Make sure after changes, no conflicts or errors, especially in IE. I'll give FTP. I want it done right away please. Thanks