I've had the following problem with the Creative / Mastering and Free bundles.
Each time I get about 7% into the install and it has an error with one of the PkgInfo files being write protected. It will keep doing this sporadically until it has gone through all the files. It appears that it only effects VSTs (EDIT-actually in the free bundle there are pkginfo files in the component directory it is having problems with as well) They do however seem to be working properly after i've run the installer over and over again!
(EDIT - also / free bundle has taken about 5mins "Creating Shortcuts" at 100% and hasn't allowed me to close yet)
