How can I install PPD?

Hello:

I'm using AI CS3 (PC version). I want to save the ps file for distiller and change it be pdf format file. After I installed full set CS3, I have distiller9 and acrobat pro 9 (because I installed some from CS4 too). When I click print, I can choose "Adobe PostScript File" in "Priner" box. But there is no selection of "AdobePDF 9.0" in "PPD" box. The selection in PPD box are "Other (unknown)" & "Device Independent" only. So, how can I install or add items inside this box? Thanks for help!