Hi Erin,
Welcome to the community. (By the way, thank you for changing usernames to your real name. Knowing everyones real names helps keep this a friendly place to visit.)
Several members here on Spirit of Photography have the Nikon D7000 as well, and I'm sure many of us will be able to help you to use the camera more effectively.
The weekly assignments are a great way to learn. I try to provide a mix of assignments that challenge both our technical and artistic skills. Just jump right in and start participating. We're a friendly and supportive bunch so don't hesitate to post and ask questions.
Thanks for taking the time to introduce yourself. I'll look forward to seeing some of your images.
Keith
Spirit of Photography Community Host