Hi, prismakakkerra,
The first thing you need to do is to get your email reset in the database. Since you haven't registered under the updated code, we may need DemonGoddess061 to do that for you. If you can send her an email at technicalsupport@adult-fanfiction.org, give her the archive pen name, the old email, and the new email, she can take care of that part.
Once the email is updated, you can then activate under the updated code. we recommend that you clear your cache and cookies first. Then follow the directions here EXACTLY as DG has written them. The password reset link is there as well. Once you've activated under the new code, you can update your email yourself in future, edit your archive pen name, and reset your password through the Control Panel of your archive profile. If you run into a problem, we can help you through it. Just post here, or email us at tos_team@adult-fanfiction.org and we'll be happy to assist.