I do not fully understand the situation you are in with the disc that you presently have....
a. why you cannot use AutoPlay to install from the disc
b. if you do not want to do "a", why you cannot copy the installation disc to the computer and then use the Setup.exe file.
Lots of questions to get your installation disc usable, but....
To cut to a quick solution to your problem, provided you have a purchased serial number for Premiere Elements 9....
Go to the following web site and download and install the Premiere Elements 9 tryout. During installation of this tryout, insert
your purchased serial number to make it your working copy. The key to success in this particular route is to read and carry out
carefully the web site's "Note: Very Important Instructions" and its click "here" so that you do not run into Access Denied.
Please let us know the outcome.