In case you didn't install the theme using Import Theme Module or checked Use theme's configuration option for Native modules configuration here is the demo modules position setup: Demo Modules Position
If you have installed the theme as described in Basic Installation than all the modules should be set on their corresponding position, but to be sure that everything went well please verify the list above.
Configure "Manufacturers Block" module to display 10 products (you can change the value to what you need, I chose 10 items):
Configure "New products block" module to display 8 products:
Configure "Customer reassurance block" module to display 3 items. (3 is the maximum value that works with the theme)
Delete 2 of the items and edit the rest:
Configure "Payment logo block":
Create a CMS page and put the payment logo and then select the page from module configuration:
When using the Internet Explorer 8 & 9, because this browsers have an css limit of 31 files and the fact that PrestaShop modules have their own css file that need to be loaded, if you enable many modules in your website, you may experience a display bug.
To workaround this problem go to Advanced Parameters > Performance > CCC (Combine, Compress and Cache) and enable Smart cache for CSS, this will compress all the css files into one file.