# Requires mod_expires to be enabled.
<IfModule mod_expires.c>
# Enable expirations.
ExpiresActive On
# Cache all files for 2 weeks after access (A).
ExpiresDefault A1209600
# Do not cache dynamically generated pages.
ExpiresByType text/html A1
</IfModule>
# Various rewrite rules.
<IfModule mod_rewrite.c>
RewriteEngine on
# Rewrite old-style URLs of the form 'node.php?id=x'.
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{QUERY_STRING} ^id=([^&]+)$
RewriteRule node.php index.php?q=node/view/%1 [L]
# Rewrite old-style URLs of the form 'module.php?mod=x'.
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{QUERY_STRING} ^mod=([^&]+)$
RewriteRule module.php index.php?q=%1 [L]
# Rewrite current-style URLs of the form 'index.php?q=x'.
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]
The rewrite rules looks fine. Please turn on Rewrite log by set "RewriteLogLevel" for that vhost in httpd.conf, turn on debug logging might be helpful as well.
lsws/logs/error.log should give you some hints on what was wrong.