Re: I might have broken the whole install…
Based on your description of where you were and what you did, I assume that your friend’s install is running WordPress and not WPMU (the multiuser version of WP). All is not lost.
You need to gain access to the backend of the MySQL database that is being used by WP. The easiest way to do this is via phpMyAdmin. Your friend’s hosting provider should have a version of phpMyAdmin. Your friend, or whomever created the MySQL instance for the WP install will have the username and password for the MySQL database–which is different than the one used for WP Admin access. If they don’t have it, you can find it in the wp-config.php file of the WP install.
Once you have access to the MySQL DB, you navigate to the wp_options table (the first two letters of the table name might be different). In that table, search for two entries: “siteurl” and “home”.
They should both be reset (this is what you did) to ventureforchange.com. You need to edit those two separate fields adding back the “/community ” reference. Of course, do not include the quotes.
Once that is done, try accessing the Admin dashboard again. It should now work.
