I had a similar bad install. Used the bleeding edge from 8-4-2005.
Got:
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Could Not Find Blog!
Searched for my*blog.com/wpmu/ in my*blog_wrdp::wp_blogs table. Is that right?
---
Install went smoothly, and I had followed instructions on deleting the .htaccess on my cPanel server's at the public_html level, and the folder was named /wpmu
and the entire install went perfectly, down to sending me the email with the admin and password. What looks like the full table is there in the database, and it's got my values there in the places listed. It's my third time through and the same error.
I have other normal WP blogs on other sites on the server working well.
I did add the "AllowOverride None" in the proper spot (without the quotes).
I didn't make any change to the install options. Each time I'd try, I'd delete the entire mess, reload it, and go to the database and drop all the tables.
The email does have a glitch, as it tells me to go to
http://my*blog.com/wpmuwp-login.php
instead of
http://my*blog.com/wpmu/wp-login.php
but that's easy enough to figure out.
Obviously I get the same
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Could Not Find Blog!
--
message.
I'm using php 4.3.10, but that's not that far out of date. All other major software on this Linux box using cPanel is pretty up to date.
I know ya'll are close to getting this straight, but I'm going to have to sit on the sidelines until I can get this worked out.