Hi!
I would like to announce that we have released the second Beta.
The major change from the first Beta is that now most of the modules are not included into the installation package, but should be downloaded and installed in the Module Markteplace section of the shop back-end (the top menu -> "Add-ons" tab -> "Module Marketplace").
Also, we have published instructions on installing LiteCommerce with and without Drupal 7:
http://bit.ly/iP5CMM