I wish i could say that its worked though.
I deleted the receipts and the preference files but its still the same story.
I even went as far as to delete the logic folder in /library/application support.
But still, when I'm installing, after agreeing to the terms, the install button changes to "upgrade" and clicking custom install reveals that the logic pro component is greyyed out. Strangely enough i can chose whether or not to install waveburner (although its already on) and the file size shows as 0k.