yucarp

Yes that is right. I copied fresh installation in subfolder. I am able to go to subfolder, and get installation instruction, but when install wp, everything is ok, but when try to go to admin, there appears wp-login.php, when put user and password than it returns me to the http://www.domain.com. I was trying to fix that and think that is error 500, which is defined at htacess file which I post here. All folder wp-admin is trapped, but cant figure why?

I made folder in http://www.domain.com/folder then copy wordpress installation to that folder. Made mysql for wordpress script, than made wp-config.php with the model of wp-congif-sample.php and insert mysql parameters. Than start http://www.domain.com/folder and install wordpress. Everything is ok, but when try to eneter dashboard or anything in admin it redirect me to http://www.domain.com
I have .htacess file in the root and that file is for other (root) main script. It looks:

#Options +FollowSymLinks
AddDefaultCharset UTF-8
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase //

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
# Main URL rewriting.
RewriteRule ^(.*)$ index.php?$1 [L,QSA]
</IfModule>

## DISABLE HOTLINKING
RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://(www\.)/?domain.com?.*$ [NC]
RewriteRule .*\.(gif|jpg|jpeg|bmp|png|js|css)$ http://www.domain.com/ [R,NC]

## Send to WWW.
RewriteCond %{HTTP_HOST} !^www\.domain\.com
RewriteRule ^(.*)$ http://www.domain.com/

ErrorDocument 400 http://www.domain.com/
ErrorDocument 401 http://www.domain.com/
ErrorDocument 403 http://www.domain.com/
ErrorDocument 404 http://www.domain.com/
ErrorDocument 500 http://www.domain.com/

Maybe there is problem, I don’t know?

Don’t usin wordpress. Two different databases, on the root is some different script, nor wordpresss, and I would like to install wordpress in subfolder.