I moved my members site from wall.fm to my Official Website (www.LindaHarrisonMusic.com/members) back in October '11. I didn't think to shut down the old wall.fm site, and unfortunately people continued to sign up to that one, and I didn't notice!
Is there a way to import the new people from the old site, without removing the new people on the new site?!
Sorry, but this is impossible. If you try to import your members from wall.fm network again, then all existing user data will be overwritten on your standalone site.