WordPress MU

Hello

Trouble a big problem when the programme promoted used Word Press multi user,

It marks the site where a new blog is showing this message:

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404 Not Found
Sorry, missing.
The page /wp-admin/install.php could not be located on this server.
Please contact the domain owner below if you feel you have gotten this page in error.
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I could not solve this problem until now could not be any person that owns the blog in the site ...!!!

Plz help...?!!!!

Please go through the readme.txt file and make sure you did every step. :)

Thanks andrea_r for the answer...

but i'm already install wordpress mu before one year ago , but when im upgrade it to anew version 1.3.3 , i find this problem ...

This picture of the problem:
http://arwp.net/up/error.GIF

and i have 2000 blog in my site ...

Plz help :( ...

there's probably some stray files kicking around. I know I had the same problem once but I can't quite remember what fixed it.

When you upgraded, did you just upload new files and overwrite what was there?

Yes, i have upload all new files, and then updating the site..

that what i was do it ...!!

thank you for your responding ^_^ ...

Plz help :( ...?!!

Plz help :( ...?!!!!!!

Plz help :( ...?!!!!!!

Plz
Plz
Plz
Plz
Plz
Plz
...

I would upload all the files again to your server. Also make sure that you still have all the correct information in wp-config.php to connect to your database. Maybe check to make sure the database isn't corrupted as well (ask your host). It says that when it thinks that WPMU isn't installed I believe. Can you check your database to make sure it is the way it was before the upgrade? What is the URL of your site?

Trent

hi Trent i will do this step :) ...

this is my site
http://www.arwp.net

thank you :) ..