Cannot install Quicktime

I've had an enforced upgrade (due to iPhone) go bad on me!
I've upgraded to iTunes 8.1.1 - as suggested to match my new iPhone. However, I can't install Quicktime in order to run it! It gets to the point where it's installing files (around 12%) and then fails suddenly - with the following messages:
"There were errors installing the software"
"Please try installing again"
I've even tried with older versions of Quicktime (from 7.3.1 upwards) but still, no dice.
I've reset PRAM, deleted and reinstalled itunes, deleted all my old quicktime files. No joy.
Any help would be most appreciated, thanks in advance!

Welcome to the forums!
deleted all my old quicktime files
Bad move, as it is an integrated part of the OS.
Try running the 10.4.11 COMBO installer again.
Don't forget to use the Combo Updater, and to download the correct version for your Mac (PPC or Intel):
http://support.apple.com/downloads/MacOS_X_10_4_11_Combo_Update__Intel
http://support.apple.com/downloads/MacOS_X_10_4_11_Combo_Update__PPC)
Then update Quicktime to version 7.6
Message was edited by: Klaus1

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Cannot install Quicktime

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