For the shop to show, you have to create a menu item in the main menu to point to virtuemart. Also to have virtuemart modules, you have to install the virtuemart modules which are included with component you downloaded. The zip file includes several modules that you can install and use.
to get to the administrator login for the backend, just add /administrator to your site, and hit enter.
http://www.yoursite.com/administratorThe link to the administrator login is in the same menu as in 1.0.x. you must have unpublished the menu module or published it to a hidden module position