Not familiar with Alibre but it might be looking for PDF document creation software masking as a printer.
I've have good success with this application: PDFCreator | Download PDFCreator software for free at SourceForge.net.
When you install it, make sure you tell it not to install any toolbars or extra programs. Just the PDF Creator program.
If you like it there's a "donate" button on their page. Maybe kick something their way.
I'm not affiliated with them. But I like the program.