Hi Kurt -
The link on the website (http://www.openldap.org/doc/) for the 2.4 pdf manual is actually the 2.3 manual. I was somewhat confused by this until after I compiled the 2.4.7 sources, and then was finding differences and noticed that the title page was still 2.3. Anyway, I was able to locate, download and install sdf and htmldoc so that I could generate a copy of the pdf. It would be nice however if you could update the link on the website, re-generate the doc to have the actual 2.4 guide, or fix the Makefile to put the correct doc pdf in place on the website.
Raymond - Attached is the 2.4 pdf, I generated yesterday in case you didn't actually get the 2.4 PDF manual.
Hmmm:
http://www.openldap.org/doc/admin24/OpenLDAP-Admin-Guide.pdf
Linked from http://www.openldap.org/doc/