Hello,
I updated the compilations of Zope Howtos and Tips in PDF format. The new PDF files contain 227 Howtos and 75 Tips.
You can download them from here:
http://www.zope.org/Members/AlexR/ZopeDocs/
Secondary download site (where uncompressed PDFs are also available):
http://alexandre.ratti.free.fr/ZopeDocs/
Cheers.
Alexandre