FCP update from 7.0 to 7.0.3 not working
 

I have tried 3 times to install the proapplicationsupdate2010-2 to update my FCP 7.0 to 7.0.3 without success. I've read that the FCP app needs to be in the root directory of Applications, which is where it is located - so I'm at a loss to figure out why it won't take. I do not have FCP X installed, running Leopard 10.6.8

Motion, Compressor, and others updated to the new version but not FCP.

Any suggestions?