Try this http://www.oxwall.org/forum/topic/10827

.htaccess should be in the directory you installed oxwall.

if it really ain't there then i guess you would have to create the file and add this to it:

Options +FollowSymLinks RewriteEngine On AddEncoding gzip .gz AddEncoding gzip .gzip <FilesMatch "\.(js.gz|js.gzip)$"> ForceType text/javascript </FilesMatch> <FilesMatch "\.(css.gz|css.gzip)$"> ForceType text/css </FilesMatch> RewriteCond %{REQUEST_URI} !^/index\.php RewriteCond %{REQUEST_URI} !/ow_updates/index\.php RewriteCond %{REQUEST_URI} !/ow_updates/ RewriteCond %{REQUEST_URI} !/ow_cron/run\.php RewriteCond %{REQUEST_URI} !/e500\.php #RewriteCond %{REQUEST_URI} (/|\.php|\.html|\.htm|\.xml|\.feed|robots\.txt|\.raw|/[^.]*)$ [NC] RewriteCond %{REQUEST_FILENAME} (/|\.php|\.html|\.htm|\.xml|\.feed|robots\.txt|\.raw|/[^.]*)$ [NC] RewriteRule (.*) index.php

Then try following the directions in the link provided above. I hope this helps. Maybe theirs something else that can be done but this is what i have on mine. sorry if this don't fix the problem.

Bridges thank you for answer. 

onur elveda, have youmanaged to fix your issue?

hi taissa i observet that. i have just problems with user urls. i mean if i write


http://www.ilkok.com/user/dolce_gabane1

it is a white page.
For other pages. it is saying "page not found"

onur elveda, to see the actual errors you need to enable debug mode. You can do it by using this instruction: http://docs.oxwall.org/plugin-tuts:enable-debug. ; If there are any errors, post the error message here.
Also, please, check the error.log if there are any errors: /ow_log/error.
Ensure that your .htaccess file has a default settings.