I have a question jbolo for jomsocial

i want to buy jbolo for jomsocial

please answer me.

1- in jomsocial , Only friend to friend? in chat (search) only show friend , no show member site? (like facebook). i want (only friend to friend , like facebook)
2- support mobile web browser? responsvie?
3- level security?
4- jbolo,run your server, or run my server?
5- no limit (Simultaneously)?

please asnwer me.
thanks.