QT 7.4 install fails - You do not have the appropriate access privileges."

Question

well.. first off.. hope this right forum. It's happening qith a Quicktime 7.4 install but its not Quicktime issue..
Got the 7.4 Software Update along with 2 others (iTunes was one). I'm on my Mac, logged in as the admin, only account on the machine.
The two other installs downloaded and installed fine. In the SAME INSTALL session the QT 7.4 reported "You do not have the appropriate access privileges."
I've ran permissions fix with Apple disk util and OnyX, no help, install fails and reports same.
Here's the Console:
1/26/08 6:26:23 PM Software Update[3382] arguments=(null)
Model Name: Power Mac G4
Model Identifier: PowerMac3,5
Processor Name: PowerPC G4 (2.1)
Processor Speed: 1 GHz
Number Of CPUs: 2
L2 Cache (per CPU): 256 KB
L3 Cache (per CPU): 2 MB
Memory: 1.5 GB

Answer 1

sorry for the sys confusion I simply forgot to set ox version on the reply. I'm installing from the Software Update on the Mac, so... software update is choosing what to install, not me.
I have fixed permissions using Apple Disk Util and Onyx. Several times, repeated, and from startup disk, backup system clone, and the install CD. All complete showing a few items as "file changed, did not fix."
I really don't care that much about getting the QT 7.4 update but it really bothers me that I'm having this problem. The problem concerns me more than not having the update.