Here is a walkthrough of the registration process.
Click on Register (top right)
Click in the boxes to agree to agree to the terms of use and privacy policy (1&2)

Then click the button to agree to the terms (3)

Fill in your registration information,
username (keep it clean),
a valid email address,
and a password (that the system approves of),
choose whether to receive news emails,
then click the save button
On the next page, confirm your password (1),
then click the Verify button (2)
Do whatever the "FunCaptcha" tells you to do, then click the Done button (1),
then click Save (2)

The next page tells you that your account has been created,
and you need to go and check your email for the activation key that has been sent,
In the email that has been sent, click on the link to verify your account,

Then you should be taken to this page, which means you are now a member of Hammock-UK (resistance is futile)