BookCrossing may seem complicated but you'll understand more and more as you use the site. Browsing through the FAQ's will help a lot. Go to the bottom of the page and click FAQs. It gives answers to many questions. I still have to check there myself occasionally and I've been doing this for several years. The Fora named Newbies is another good place to ask questions. Remember we all started out as Newbies.
Will you be doing Controlled Releases either by mail or person to person? I'd be happy to send you a historical fiction as a RABCK to help you get your Bookshelf supplied. A RABCK is a book another member gives to you as a gift; no book is expected in return. I have three books to suggest: 1. "London" by Edward Rutherfurd, 2. "Now Face to Face" by Karleen Koen, or 3. "Annette Vallon/a Novel of the French Revolution" by James Tipton. Let me know which you'd prefer. Of course, you'll need to send me your name and address through a Private Message (PM.)