Social theme registration link

Hi

I am quite new to WPMU Dev and it maybe a silly question, I have installed the buddy press social theme to applife.co.uk and I am trying to get the register link working, I have changed the theme options to http://applife.co.uk/register but whenever the sign up link is clicked the page just refreshes instead of going to a sign up page,

Can someone please advise ?

Thanks
Nomi