Hello,

The tiles are actually visualized by a Tile control and you can create a Style  with TargetType="{x:Type igTiles:Tile}".  Also you can get it original template from the DefaultStyles folder (default install path: C:\Program Files (x86)\Infragistics\NetAdvantage 2010.3\WPF\DefaultStyles\Tiles\ TilesGeneric.xaml ).

Please let me know if you require any further assistance on the matter.