Just click on the “Sign In” on the top right menu, then click “Sign In With Facebook” on the Sign In page.
You can also click Register Now , if you do not want to use Facebook Sign Up.
Once you complete the Sign In With Facebook or Register process, you will receive an email with verification link and verification code(check your junk mail box too). You can just click the verification link and you will be login on the new opened page.
You can also get verified by manually inputting the verification code on the Sign In page.
After that, you are login and you can bid on any lot you are interested.