it looks like your domain has run out as its available again.
Its easy to set up , head to
www.123-reg.co.uk then type in your domain name and click serch then add it to the cart and check out, i think they also take paypal now.
Fill in your info and pay, then go to the "web forwarding" tab select "permanent forwarding" click non-framed forwarding and enter the url of your ebid store, done.
Url forwarding is free so the only cost to you is domain registration which is £4.99 per year or £6.98 for two years