I want WPMU on a domain where there's stuff in pre-existing folders -- some of that stuff is static HTML pages, some of it, in a different subdirectoy, is managed by Textpattern.
So far, I've tried to install WPMU in the Web root of three different domains: in two of them it left a Textpattern install in a subdirectory accessible, but in one install a Textpattern install became inaccessible. On the domain where I want it, it left the Textpattern install in peace but rendered the flat files in another sub-directory inaccessible.
I couldn't detect a pattern, but I'm sure it has to do with the funky URL rewriting that WPMU performs; as soon as I disable the .htaccess file, I can access the other stuff again.
Any comment?