virtual subdomain with htaccess

[eluser]TheFuzzy0ne[/eluser]
OK, I think we might be getting out wires crossed here, so I'll try explaining again.

Code:

RewriteCond %{HTTP_HOST} ^subdomain[NC]
RewriteRule ^(.*)$ http://www.domain.com/test/index.php/$1 [QSA,L] # This will redirect the browser

Code:

RewriteCond %{HTTP_HOST} ^subdomain[NC]
RewriteRule ^(.*)$ test/index.php/$1 [QSA,L] # This won't