BuddyPress.org

hi
the version of bp is 1.2.6

the content of .htaccess is
Options +FollowSymLinks
RewriteEngine On
RewriteBase /
# Business Cards
#RewriteRule ^([0-9-]+)/?$ /index.php?p=$1 [L]
#RewriteRule ^([0-9]+)/(.*)?$ index.php?p=$1&$2&$3 [L]
#RewriteRule ^([0-9]+)/(.*)/$ index.php?p=$1&$2&$3 [L]
#RewriteRule ^([0-9]*)/(.*)/(.*)$ index.php?p=$1&=$3 [L]

RewriteBase /blog/
RewriteRule ^index.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /blog/index.php [L]