I dont think they have processed your license yet.
Your nic name isnt showing as a licensed customer.
They do the 'paperwork' manually at the moment.
Things are complicated by the fact they have sold quite a few licenses lately and they are in the midst of moving offices.
Right now its also their night time.
Just give them a couple of days to get it sorted out.
I appreciate you are keen to get started.
I'm sorry for any delays you experience.
You are not the only one unfortunately.
You will really like using Octane though
PS you can download the latest beta from the Release candidate forum when you have full forum access.
EDIT: I see your nic is now (some hours later) showing as licensed so give it another try.