Members not getting the right subscription - Membership

I´m running Membership on http://www.magisidan.se

I have 4 different roles for mebers; visitor, member, premium member for 3 month, premium member running subscription. I have set that every new member to my site gets the subscription "member" and get access to the More tag.

However, I have som issues with the plugin. People who aren´t sigen up on my site don´t have access to the more tag (just as I want), people who sign up get access to the More tag BUT they don´t show up as members in the membership plugin. I have set that new sign-ups will get the subscription "member" as default but it doesn´t seem to work.

Any ideas on how to debug this mess?