mod_rewrite fails

[James Jones <james@xxxxxxxxxxxxxxxx>]

can someone explain why neither of these rules work:


Rule 1:
RewriteCond %{HTTP_HOST}%{REQUEST_URI} ^(.*)(?!wp-login) [NC]
RewriteCond %{HTTPS} on
RewriteRule (.*) http://%{HTTP_HOST}%{REQUEST_URI} [L]   


Rule 2:
RewriteCond %{REQUEST_URI} ^wp-login(.*)$          
RewriteRule .? - [S=1]         
RewriteCond %{HTTPS} on          
RewriteRule (.*) http://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]


We are trying to rewrite all pages back to http except for one special page: wp-login. Any help would be greatly appreciated.

-- 
James Jones
+1-413-667-9199
james@xxxxxxxxxxxxxxxx