Login and registration - not aligned

-- HikaShop version -- : 2.3.2
-- Joomla version -- : 3.3.3

Hi there,

Installing Hikashop on a Joomla 3 website (same template as previous Joomla 2.5 website). However I am having problems getting the login/registration form to display correctly. On my previous Hikashop website (Joomla 2.5) the login and registration are side by side (see image attached). However on my new installation on Joomla3, it is a bit of a mess (image attached). Can you help me at all get the registration to the top, and to the right of the login module (like in first image attached)?

I have copied the CSS from my Joomla 2.5 site and copied across any custom 'views, but not worked.

Thank you in advance for all your efforts!

Thanks Jerome - yes eventually managed it.