Hello, used the automatic update plugin, which didn't work at first, but after looking for solution, I found this from someone with a similar situation (blog in subdirectory on root but URL not):
[Now my blog is located in a sub-directory on my root, but it's URL is not, so here's what I had to do in order for WPAU to work. I had to move the files ".htaccess" and "index.php" from the root into the sub-directory. Ran WPAU without a hitch. Move those two files back to the root.
Open "index.php" and edited it by adding "/blog" to "/blog/wp-blog-header.php"]
I did exactly that, but my site won't run and this is the error message I get:
Warning: require(./wp-blog-header.php) [function.require]: failed to open stream: No such file or directory in /sites/name.com/www/index.php on line 17
Fatal error: require() [function.require]: Failed opening required './wp-blog-header.php' (include_path='.:/usr/local/share/pear') in /sites/name.com/www/index.php on line 17