I get a big quicktime logo with question mark in the middle of it.
I have installed the plug-in andsupplied the link to the file;- whats next

Thanks for you help Muzza!!!

the link extremephotography.com.au/index.php?option=com_content&task=view&id=21&Itemid=1

I'm going to assume you have Quicktime installed.

Does the string you entered look like this {mov}Muzza_070523_0143p{/mov} ?