I encountered a problem with Microsoft Explorer 8 and FreePDF: when trying to print a web site that would stretch over several pages from Microsoft Explorer using the FreePDF printer driver, only the first page is saved as a PDF file. I noticed this accidentally when trying to retrieve a previously saved page, which had then only been saved partially.
The same printing from the same web site works fine on Google Chrome.
I have no idea what the cause of this problem is, and I cannot point out if it is an MS8 problem or a FreePDF problem.
One solution is to do first a PrintPreview, then print from there - this works and creates a PDF with all the content broken down into pages.