What does the multisite activation option for marketpress in the affiliates network panel do?

Will the network activated affiliates plugin track referrals for all marketpress sites on the entire multisite network as referrals to the main multisite, or to the individual subsites?
I have a multisite network with affiliates installed and network activated. If I check the options in the affiliates multisite panel for "marketpress" will subshop sales through the multisite referral links count as referrals for the multisite?
I need to know if the users in my multisite affiliate program will receive referral commission on sub store sales.