FreeForum.ca clone with SimpleMachines ?

[NikolaTesla]

Anybody know how to allow anybody to set up their own forum at a subdomain

like hxxp:freeforum.ca [nonactive] does with phpBB ?  Anybody see a site like this with

simplemachines ?

[ArkServer]

I believe there was a mod that does that but i forgot the name. Should be there if you use the search.