Are you installing over a network? If so, you'll likely need to contact Adobe Tech Support with these kinds of questions.
I am installing over the network and I'm not. We put the various software packages that could potenteally be installed in a hidden folder that only admins can access on the image for our student laptops. Then I just have to have a script that calls the silent install right from the local hard drive. The process has worked like a dream until now.
That link goes to the instructions for a PRE10 silent install. But your link (ending "premiere-elements-4.html") suggests you are using PRE4 - maybe there is a difference.
As Steve says, your best bet is to contact Adobe directly. But you could also ask in the Adobe community forum Downloading, Installing, Setting Up. to see if someone else has your issue. I believe that Adobe staff also monitor that forum more so than others.
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