Hi, am trying to get Nochex card payments working on my ZenCart 1.3.7.1

The short version is I want Nochex to just appear and ask for card details - i.e. NO 'create a Nochex account - that crap just puts people off. How can I change my Nochex 'Seller' account into an 'Xtra' account which allows non-Nochex members to make direct payments up to £100 ?

At the moment when custs check out they are asked by Nochex for Login/Password/last 6 digits of their card.. and the 'register for a nochex account' link takes them to a page about Seller/Merchant accounts - wtf?

Cheers,
Gavin.