How do I get the Acrobat Distiller back?

Using FM10. Have to create a PDF file only occasionally. Always used the plug-in that came with FrameMaker. We decided to download the trial version of Acrobat X. Used it for awhile but didn't see any great advantages to buying it. For the work we're doing, the Save as PDF feature in FrameMaker worked just fine. So I deleted Acrobat X. Now the distiller is gone as well. I can no longer Save as PDF in FrameMaker. When I try, I get the error message, "To execute 'Save as PDF' command, you must have Acrobat Distiller version 5.05 or higher installed."

How do I get the distiller back?

We purchased and downloaded FrameMaker on-line so I have no CD.