After some hair pulling nights struggling with the registration process, this was what I finally did to checkout my first shipment from taobao.
1. Start with http://sea.taobao.com
Click on 免费注册 (Free sign up)
2. Enter a username and password. Can be in English characters.
3. Set up a forwarding address
Forwarding address setup
Select all the items for checkout
Click on the international forwarding
Choose the forwarding agent
Checkout and enter credit card details