Ouch, thread is pretty outdated though. Basically:
Install.
In Settings, add your Cmdr.
I'm not sure if you still need to manually point to soft to the location of the logs, though. One used to.
If you have an account on EDSM and want to link EDD to EDSM, follow instructions (get an API key, paste it in Settings, etc.)
Set up Screenshots to have it convert your screenies if you want.
The rest happens in History.
Better set it up and do a few jumps to make sure it got the logs location right.
Use the maps for info and stuff (careful, the 3D map can be long to open); use the Export tab to export your scans in .csv, etc.
If you need further help, find the EDD discord server in Help.
EDIT: thread is old, don't pay attention to 'verbose logging' etc.