ok so I am still learning everything there is to the GECK. When I create a new data file and make changes. For example. I create a house in good springs and do all that and make it the way i want. Save, export everything to be sure. Launch FNV and select data files and click the one i made and i go to where the house is suppose to be and its not there. Any ideas?

1. What worldspace did you put the house in?
2. What do you mean, you 'export everything'?

This happens very often if the geck version and game version are not same. Please make sure you have nv geck version 1.3 and your game is updated by steam to version 1.3.