How to customize opencart home page

How to customize opencart home page. as per your question, you want to add more products on home page..like featured...

1.  go to catalog\view\theme\default\template\module\featured.tpl
2. then you will see lots of code here. read codes, and see every code works on its own criteria and function such as product description, price, add to cart, wishlist etc in feature container.
3. copy all code of this tpl file.
4. now paste it at the end of the code where code it ended up. 
5. save this file.
6. now reload home page, and you will found more product here like feature container. 
7. it just simple as making maggi noodles in 2 minutes. 
8. learn more about MVC and opencart and PHP................ 

and as per our last discussion that memory error were not opencart problem. i think this was your system problem..if it will occurs again. then you can concern me about it. i will mention in my next post in this blog..thanks.......