Basically, Yes. Buddypress is plugin for an existing WordPress install. You can’t just install it by itself in a sub-folder. Also, Buddypress is not like a “blog posts” page that you can assign somewhere on your site. You can’t fit it into a couple pages. It’s an entire social networking platform. It will add groups, profiles, messaging, activity, and more to your site.
The only way I know to do this, is to log in as an administrator, and then visit the member’s profile edit url (/members/username/profile/edit). You can then edit the fields.
Admittedly, this is clunky. I was toying with the idea of writing a plugin to make this easier, but I’ve also heard talk that this may be addresed in 1.3. Someone else might know more.
The error you are running into is harmless, it doesn’t affect anything. The admin.js file it’s trying to find is for a feature in a future release. I took out the file for the current release, but forget to remove the script link.
