I reset my primary domain to my own URL, therefore moving away from the .wordpress.com approach. Since then, my stats are still showing site visits, but the referrer stat is saying 0. Is this is a temporary issue caused by the transfer or have I done something wrong!?
Well, there are no links to your new URL yet, so there will be no referrers. There’s always a drop in pagerank and Technorati rank when you change URLs; estimate 4-6 months to get back to where you were.