However, they're a little slow on customer service. It took them 9 days to get back to me regarding the location of a secure sign-up page, which I couldn't find anywhere on their site. Their response:
"Hello, thank you for your e-mail,
I apologize for the delay.
The pages on our site are as secure as they can be at this time.
If you have any further questions or concerns, please reply to this address.
Eventually, I found an SSL connection by putting https://
in front of their URL...