The PowerStore is just a set of files and the data in the db. So if you would like to move it from one location to another you only need to move over the files and info in the db. When you do move it though you will need to go directly into your db and update the values for the URL's in the wa_settings table. You would only do so after moving the files to another location and importing the db.
Once you have it migrated successfully it should work just as it did after you installed it the first time. If you login to the admin area you will be able to adjust the settings for the site and do all of the other administrative tasks like updating and adding new products. You can then also visit the front end of the site to make use of the store and shop it.
