How to use use module also_purchased_products

[milk41hk]

After install osC eveything gone well. :P

But i see some site which use osC can have

"Customers who bought this product also purchased" content box :thumbsup: :thumbsup:

 

I also want to do this

I don't know how can i do :(

 

i need to config which part to let it appear?