In regards to your incomplete installation of the Functional Content, you can do that now from the installer on the second disc.
I do not have PrE 8 suite, so this is a general observation from dozens of other Adobe Suites. The welcome screen (AutoRun) on the first disc will have a menu of the programs in that suite, and an active link to Install All, or the separate elements of the suite. That has been the norm since the release of CS (Creative Suite). Not sure how they may have changed things for PrE/PSE 8, but it sounds as though one could easily be confused.
As for contacting Adobe, there is a link on the main forum page for that.
Also, I would not list your Adobe Case # in the forum. Adobe does not read these, so it is of no use to them, plus all who view the forum will have access to it.
PS - due to the installation problems, one can also do Repair Installations of programs that are only partially installed (this is not for the Functional Content, but with the installation of the program), or corrupt installations of Adobe Programs. This is simple and has always been great for all users (myself included), who have used it.
And, of course, the easiest way to contact Adobe is to click on the Contact button at the top of this page!