The program will store the image files inside the folder "C:\Program Files\OblyTile" and create the Shortcut .LNK file inside the StartMenu folder.
If you want to remove a Tile, right click it on the start screen/menu and select "Remove From Start" or select a tile on the OblyTile Created Tile list and press the recycle bin button located on bottom right of OblyTile.
OblyTile has support for command line, you can check the list of available commands by running OblyTile with the "/?" as argument.
To remove OblyTile and revert to default windows settings you have to run OblyTile as administrator and click the Remove button located in the settings menu [Click the Wrench icon on top of OblyTile to access the settings menu]