importing products from 1.6 to 1.7 not works

[tonymusante]

Hi all, i'm trying to import products from 1.6 to 1.7.

I have exported database tables of categories, products, orders and customers.

I have imported them in a fresh install of 1.7 and categories, orders and customers works why importing products does not work?( importing operations do not return any error but products list are empty)

Any suggestion about it?