WordPress MU

1) if you haven't changed hosts, there isn't anything anyone can do.
2) PLEASE read the directions, and DO NOT EDIT WP-CONFIG FILE.

Other than that, this topic doesn't serve any other purpose.

Why do you keep editing the wp-config.php file when we keep telling you not to?

i can reset wp-config.php and dye problem!!!
No WPMU site defined on this host. If you are the owner of this site, please check Debugging WPMU for further assistance. :(

sismblog, just delete the wp-config.php file, upload the unmodified wp-config-sample.php file and then click reload in your browser.

THANKS!!!THANKS!!!THANKSSSSSSSSSSSSSSSSSSSSSSSS!!!!YES!!!I CAN ISTALLED!!!!YESSSSSSSSSSSSSSSSSSSSSSSSSS!!!!THNKSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS.I CAN CLOSE POST ^_^.Thnks bye davide.

a few versions ago, the authors goofed and changed the $table_prefix default in the Config sample from wpmu_ to wp_

If you manually edit your config file to return to the "old" wpmu_ then the software will see your original database files.