Vince is right. I'll get the code.
Code:
RewriteEngine on
Options +FollowSymLinks
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^tutorials/(.*)/$ tutorials/$1 [R]
RewriteRule ^tutorials/(.*)$ tutorials.php?id=$1 [L]
Don't ask me what it does. I have no idea actually. All I know is it works. If you want to change just add the R and L ones and just change was needs changing. Don't touch the (.*) and so forth.