Quick time plug-in missing in Safari

Hi there!

I have a problem in safari, i am visiting a website which needs quick time plug-in unfortunately when i go to system preferences, in the plug-in section quick time plug-in is missing. I went into the web plug-in folder in Library and quick time plug-in is in a sub folder called Disabled plug-in. Anybody willing to help to get quick time in the plug-in list and make it work?

Thank you!!!!!!!