I am trying to integrate with asp.net membership following this instructions on the wiki but no results.
http://wiki.yetanotherforum.net/AspNetMembershipIntegration.ashx 

the instructions are not detailed. Can anyone help ?

I've been trying to figure out the same thing but it looks like someone forgot to put the instructions on the Wiki :(

I've given the Yaf membership provider the same settings as my existing site (app name, db connection, machinekey etc.) but when I try to login on the forum it just says "There's been a system error processing your request. Please contact the forum admin explaining what you were doing when it happened."