RewriteRule problem in codeigniter 2.0.2

[eluser]Le Tien Tam[/eluser]
I have site tree below

root
--|-- index.php
--|-- .htaccess
--|-- source
---------|----application
---------|----index.php
---------|----.htaccess

.htaccess file in root:
############
RewriteEngine on
RewriteRule ^vnmc-([^/]+)\.html?(.*)$ /source/home/html/$1
############

.htaccess file in source:
############
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?/$1 [L]
############

home is my comtroller file and html is function controller
and go: http://domain.com/vnmc-home.html?home

It working ok with codeigniter 1.7.3 but in codeigniter 2.0.2 it show error 404.
When i print $_SERVER below 404 error file
[REDIRECT_QUERY_STRING] => /home/html/home
[REDIRECT_URL] => /jetwi2/home/html/home
[QUERY_STRING] => home
[REQUEST_URI] => /vnmc-home.html?home
But it ok when I go to direct link: domain.com/source/home/html

Please show me the way...
How i can use RewriteRule in CI 2.0.2 like CI 1.7.3

[eluser]InsiteFX[/eluser]
Did you modify your index.php file to point to your system and application folders?

InsiteFX

[eluser]Le Tien Tam[/eluser]
course because it ok when I go to direct link: domain.com/source/home/html
and I can visit all link with direct link domain.com/source/controller/method

[eluser]Le Tien Tam[/eluser]
I found it.
In the config.php we have to set $config['uri_protocol'] = 'QUERY_STRING'; and only QUERY_STRING
Default value is AUTO? Why don't 'AUTO'?