I only had a brief look, but following comes to my mind:
Manual Installation Steps:
I would like to advice people to use php-(sapiname).ini or at least mention this somewhere.
I would second that the SAPI specific ini file names need more promotion!
I like to suggest that setup of a valid php.ini file is moved to the server specific instructions. Because one can run php just fine without any ini-file, you need this mainly for enabling extensions, or setting specific instructions.
It is better to document it in the manual part IMHO, as php.ini settings are not server specific.
Windows and PWS 4 or newer
Instructions for php 5 are missing, filenames imply its for php 4 only (e.g.: pws-php4cgi.reg)
Same for Windows NT/2000/XP and IIS 4 or newer (e.g: php4isapi.dll)
These should be PHP 5 ready, sure!
Goba
