@mojo, I already have changed DAEMONS in rcS.conf (should've mentioned it earlier, sorry). Nevertheless, reconfiguring tazwikiss doesn't change anything. (I ran the command with lighttpd stopped).
@emgi
First of all, I didn't change permissions after installing lighttpd, didn't think it could have antyhing to do with wikiss not running, since it was working fine with httpd from busybox.
Strange enough, when I try to change the permissions, I fail.
sh-4.2# ls -l
total 48
-rwxr-xr-x 1 www www 579 Mar 26 07:53 config-de.sh
-rwxr-xr-x 1 www www 606 Mar 26 07:53 config-fr.sh
-rwxr-xr-x 1 www www 522 Mar 26 07:53 config.sh
drwxr-xr-x 12 www www 4096 Mar 29 18:39 historique
-rwxr-xr-x 1 www www 15638 Mar 26 07:53 index.sh
drwxr-xr-x 2 www www 4096 Mar 29 18:39 pages
drwxr-xr-x 2 www www 4096 Mar 26 07:53 plugins
-rwxr-xr-x 1 www www 0 Mar 29 18:39 rss.xml
-rwxr-xr-x 1 www www 2075 Mar 26 07:53 style.css
-rwxr-xr-x 1 www www 1282 Mar 26 07:53 template.html
sh-4.2# find . -type d -exec chmod 755 {} \;
sh-4.2# ls -l
total 48
-rwxr-xr-x 1 www www 579 Mar 26 07:53 config-de.sh
-rwxr-xr-x 1 www www 606 Mar 26 07:53 config-fr.sh
-rwxr-xr-x 1 www www 522 Mar 26 07:53 config.sh
drwxr-xr-x 12 www www 4096 Mar 29 18:39 historique
-rwxr-xr-x 1 www www 15638 Mar 26 07:53 index.sh
drwxr-xr-x 2 www www 4096 Mar 29 18:39 pages
drwxr-xr-x 2 www www 4096 Mar 26 07:53 plugins
-rwxr-xr-x 1 www www 0 Mar 29 18:39 rss.xml
-rwxr-xr-x 1 www www 2075 Mar 26 07:53 style.css
-rwxr-xr-x 1 www www 1282 Mar 26 07:53 template.html
So I tried with one directory at a time:
sh-4.2# ls -l | grep historique
drwxr-xr-x 12 www www 4096 Mar 29 18:39 historique
sh-4.2# chmod 755 historique
sh-4.2# ls -l | grep historique
drwxr-xr-x 12 www www 4096 Mar 29 18:39 historique
But I guess this is not the culprit, since the front page is being read; that means it can access the pages directory, even though it's 751.
As for the document root, I guess it's set properly since everything else is working.