It is a glitch in the system that the downloads for the Annual Membership are still showing up, I have forwarded this to our webmaster to have them look into it and remove the annual membership downloads, but the membership being cancelled around 2 years ago explains why the activation history shows available and used activations as 0.
Site Import is not a part of the Web Developer suite. I Do not see a stand alone purchase for site import except as part of the annual membership in your account.