I'm also seeing ads. A week or so ago I got a renewal notice for InsideFlyer, I renewed for two years and I think I re-associated my flyertalk account to the insideflyer id.
I can log into
www.insideflyer.com just fine and see that my account now expires in 2013. But
http://www.flyertalk.com/forum/claim_subscription.php says:
We could not find an active InsideFlyer.com user account that matches the info you have provided.