I'm the Debian Maintainer for PHPwiki, so I'll see if I can help you out.
I have a phpwiki running. It's on version 1.3.4 and when I upgraded my
distribution to Debian Etch lately, phpwiki stopped serving me wiki
pages but opted for error messages instead. They probably have
something to do with php being upgraded, but I'm not too concerned
That doesn't work for me. I get asked to sign in. I enter the values of
ADMIN_USER and ADMIN_PASSWD in /etc/phpwiki/config.ini respectively.
WikiDB_backend_PearDB_mysql: fatal database error
DB Error: no such table
(SELECT prefs FROM pref WHERE userid='phpwiki' [nativecode=1146 **
Table 'phpwiki.pref' doesn't exist])