In order to save clips from the Web Viwer you need to purchase and install the Apple QuickTime PRO software key. This unlocks the "save" feature in the clip viewer.
You can purchase this from http://QuickTime.Apple.COM for approximately $25.00 per computer. If you are an educational institution, you might have a special deal worked out with Apple. Check with the appropriate purchasing authority to see if that is the case.
When you get the key, start the QuickTime Viewer and insert the PRO key you receive from the Apple Online Store via Email.
See Attached PDF file on how to disable this driver on the user's Mac below on this page.