Funny thing... I followed all the steps and what happened is something much like what was once reported in here and here, only that during Field Mapping phase, everything is listed out correctly.

When I hit the Preview page, the only thing listed are the products' name. No price, no SKU, no anything. If I proceed, the node is added, but not as a product. As a matter of fact, when I list Content (admin/content/node), content type is even empty, and Edit returns an error, something like:

warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, '_node_form' was given in \includes\form.inc on line 218.

Anyone can figure out what probably went wrong?

I'm using node_import-5.x-1.6 under ubercart 1.0.