.info files

When trying to install the QB Per Order module to my Drupal 7 I get the following error message:

qb-6.x-1.x-dev.zip does not contain any .info files.

This has happened with other modules I have tried to install, and I can't seem to get any help for this error message. I am new to Drupal 7 and trying to integrate my Ubercart shopping cart with my Quickbooks POS.

Which leads to another question - will UC QB Per order work with Quickbooks Point of Sale? I am seeing accounting software listed, but I would like to be able to sync my POS inventory with the inventory on my website.

Does anyone have any ideas for me?