The error message "The selected bitmap contains no georeference information" is usually caused by selecting None as the spatial reference source when importing the image into a vector project in Didger 3.
Go to File | Import Bitmap | Into Vector Project. Select the TIF file and click Open. In the Bitmap Import Options dialog, make sure the Spatial Reference box is set to Embedded GeoTIFF Parameters and click OK.
Updated March 20, 2014