Hi
I need help, my configuration is
Joola 1.011
Joom Sef 1.2.5
the application is hosted by 1&1.
Joomla is not in the root directrory, but in /Joomla
I've two adresses mysite.fr and mysite .com
mysite.com is redirected px the provider
mysite.fr is redirected by the .htaccees

RedirectPermanent /index.html http:/xxx.fr/index.php

in the first time i've two .htacces one in the root directory only with the redirect command, and the second in /Joomla directory with the complet instructions.
In this time JoomlaSEf work fin, with the exception of CB builder (connection and deconnection).
Now i'try to setting up CB builder.
I've make a new .htaccess in the root directory, and rename the old in the /Joomla directory.
And Cb-builder works for conection, deconnection, liste members, but not with the "friendly URL", my domain work also with the home page, but for the others menus choices. I've 404 error messages (customizing by myself, not the error messages from 1&1)
The .htaccess is ....

# Uncomment following line if your webserver's URL
# is not directly related to physical file paths.
# Update Your Joomla/MamboDirectory (just / for root)
# mod_rewrite in use
RewriteEngine On
RewriteBase /Joomla
#rajaout mu
Options +FollowSymLinks

# redirection la xxx.fr
RedirectPermanent /index.html xxx.fr/index.php

#mes valeurs a moi
CheckSpelling Off

########## Begin - Joomla! core SEF Section
############# Use this section if using ONLY Joomla! core SEF
## ALL (RewriteCond) lines in this section are only required if you actually
## have directories named 'content' or 'component' on your server
## If you do not have directories with these names, comment them out.
#
#RewriteCond %{REQUEST_FILENAME} !-f
#RewriteCond %{REQUEST_FILENAME} !-d
#RewriteCond %{REQUEST_URI} ^(Joomla/component/option,com) [NC,OR] ##optional - see notes##
#RewriteCond %{REQUEST_URI} (/|\.htm|\.php|\.html|/[^.]*)$ [NC]
#RewriteRule ^(content/|component/) index.php
#
########## End - Joomla! core SEF Section
#Redirect /opensef.html www.open-sef.org
#Redirect /google.html www.google.com

########## Begin - 3rd Party SEF Section
############# Use this section if you are using a 3rd party (Non Joomla! core) SEF extension - e.g. OpenSEF, 404_SEF, 404SEFx, SEF Advance, etc
#
RewriteCond %{REQUEST_URI} ^(Joomla/component/option,com) [NC,OR] ##optional - see notes##
RewriteCond %{REQUEST_URI} (/|\.htm|\.php|\.html|/[^.]*)$ [NC]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule (.*) index.php
#
########## End - 3rd Party SEF Section



########## Begin - Rewrite rules to block out some common exploits
## If you experience problems on your site block out the operations listed below
## This attempts to block the most common type of exploit `attempts` to Joomla!
#
# Block out any script trying to set a mosConfig value through the URL
#RewriteCond %{QUERY_STRING} mosConfig_[a-zA-Z_]{1,21}(=|\%3D) [OR]
# Block out any script trying to base64_encode crap to send via URL
#RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [OR]
# Block out any script that includes a <script> tag in URL
#RewriteCond %{QUERY_STRING} (\<|%3C).*script.*(\>|%3E) [NC,OR]
# Block out any script trying to set a PHP GLOBALS variable via URL
#RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]
# Block out any script trying to modify a _REQUEST variable via URL
#RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})
# Send all blocked request to homepage with 403 Forbidden error!
#RewriteRule ^(.*)$ index.php [F,L]
#
########## End - Rewrite rules to block out some common exploits

I think it's a problem of htaccess, but i'dont found the error.
Thanks you for help.

Michael