I have looked all over and cannot find any sort of concrete instrcutions what needs to be set up, and how, in order to file a flight plan.  Maybe I am missing something?  Like a video, or instructions in the manual that I dont see?  
The ifly app is telling me I need to create an accout, and that I need to go to 
https://imfsweb.afss.com/website
This website goes nowhere, and dose not seem to exist.   
Any help would be appreciated.