Permissions to list ads and buy items

[CWVRV]

Since this is integrated with SMF forum, if you set permissions to allow guests to use the classified ads to sell and buy, do they have to register with the main forum, can they just register to the classifieds plug-in, or not at all?

Thanks! 

[SMFHacks]

They have still be registered on the forum though SMF. The classifieds system does not have it's own account/login system.

[CWVRV]

Thank you