If the data showing up from your Neptune components (using Records.cfc or anything sitting on top of DataMgr.cfc) is returning a bunch of random data and editing the data does no good, then you are running on the simulated database.
The purpose of the simulated database is to allow you to prototype your code without having a datasource set up.
Once you are ready to hook your program up to a datasource, you can create your database and datasource and then just change the datasource configuration.
Neptune should recognize the configuration change and automatically reload all dependent components and your application will then be running against a real database. At which point all of the fake data will vanish and your edits will be permanently stored in the database.