Me again, and I'm only being critical because I want your site to succeed ...
Your login / account creation process is not at all intuitive. In fact, I'm still not sure whether I have an account.
I created an account for the forum - seemed to work fine. When I go to your home page to purchase a deal, it no longer appears as though I am logged in ... like the cookie isn't shared from forum to regular site.
When I click the login link on the regular site, it asks for my email and order #. No where does it indicate how or where I can create an account. Is an account created on first order? On newsletter subscription? Before a couple minutes ago, I didn't have an order # and I didn't particularly want to subscribe to your email newsletter (prefer rss).
Still, your faq on the order page said that if I had an account, I could track my orders, which is appealing, so I gave subscribing to the email newsletter a shot and I made my first purchase with the same email address. Still no sign that I can login. All I can do is enter an email and associated order number to see details of one order. Doing so does not alter the login link, so I'm assuming I'm still not logged in.
And by the way, that seems like a pretty easy system to hack. Anyone who knows my email address and that I am a customer of this site can start typing in random order numbers (or write a script to do so), allowing them pretty easy access to my voucher. It's not going to take long to get get to my order number, starting at 0.