bbPress in WPMU [only base/main blog]


In one of my WPMU planned project , I don't will use buddypress [and bbpress inside]

I wish install a regular bbPress [not buddypress] and this only works in main blog [home/base blog]

My questions:

1. bbPress install : is a normal / regular install? I can use integration of cookies and same DB?
Or I need read special instructions?

2. bbPress eduBlogs theme works in single non-buddypress install?

3. All registered users [blog owner or not] will share the login with bbPress

or ...

The better way is forgot all this :wink: and install buddypress?

thanks in advance

joao barroca