I have been working on my shop (it is not public yet) and when I first started I used 1.3 and the et-black theme.

et-black was not compatible w/ 1.4 as of yet so I decided to make one from scratch, based on the default PrestaShop theme. Only things changed was CSS as well as a few images in the theme folder. Things were moved around a bit to accommodate a large logo at the top (mine is 900 pixels wide)