Hmm... dangerous... is that really a jpg?
1. Try clearing cache and temp files.
2. Try updating Flash.
3. Add the site to IE8's Compatibility Mode list of sites.
To add the site to IE8's Compatibility Mode list of sites:
1. Click on Tools > Compatibility View Settings
2. Under Add this website text box, enter in the website that you are trying to view
3. Click on Add
4. Click Close to apply the settings
5. The page will refresh, check to see that the videos are showing