??s about making a reader's rides site

I have registered a username and they have sent me a password in email. I use my username and password but it just keeps asking for it to access the page. It does not say error in username or password.

What do I need to do to get started on making a web page for my ride?

The Readers Rides section of the website is not done by us directly - it's by a third party called Cardomain.com. If you have problems with your Readers Rides site, you need to e-mail support@cardomain.com