On Vista : An unknown error occured while printing

I installed PDFCreator twice and I still can't print to PDF.  I understand the first failure as my firewall was on and although I allowed everything, there's a possibility it was the firewall fault (although it never caused a problem with other installations) and Windows Vista Print spooler was stopped and set to manual.  I don't understand the second installation, which I published its log (http://dynv.qc.to/content/pdfcreator-setup-log-setuplogtxt-2), as I rectified the potential problems of the first one ...  PDFCreator is now in the printer list (now set as default) but upon printing to it I receive a warning alert entitled "Printer Error" mentioning "An unknown error occured while printing.".  PDFCreator - PDF Print monitor was running and the printer on the standard bar had a green dot overlaying it.

Thanks for your help.

A week later and PDFCreator still won't allow me to print to it.

Please help.