Avid Meridien & FCS2

This was brought up in a previous thread but never resolved.
I'm changing everything over to my new Mac Pro and FCS2 on my home system. I have a number of animations that I use that were outputted from AE using the Avid Meridien codec. The clips will not play in FCS2. I get the usual white screen if I play them in Quicktime player. I've transfered the Avid Quicktime components from the older machine onto the mew Mac Pro but they don't seem to work. I've been searching the net for a few days now with no good results. Is there a solution to using Meridien files within FCS2? As a work around I've been converting the Meridien files to Animation with alpha files. ti works but I have lots of older files scattered among many projects. It's difficult to find all of them, convert them and relink the new files. Possible but not much fun...
Running FCP 6.0.2 under Leopard on a 2.8 Octo. Not sure of the version of Quicktime from memory, but I did all of the software updates while setting up the machine so it would be whatever the current Quicktime version is.
Thanks in advance,
Tom