I got this error when i uploaded the files on the IIS7 server.
500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.
I've read on this forum that it had something to do with wp-config.php. He resolved the issue somehow but never said how he did it.
http://wordpress.org/support/topic/installing-wordpress-on-iis-7
I have no idea what to do. (I've just started this today)