Apologies folks, but it seems we're having a problem with PDF files from the site not loading properly with Firefox (IE and Safari seem to work fine).
Until I can figure this out, you can get around it by right-clicking on the link to a document and saving it on your machine. It appears that it will save with a ".part" extension. If you change the extension to ".pdf" the file should work okay.
Any ideas anybody? I'm coming up empty here...
Tim