I decided to start looking at this today. Do you just follow the videos posted? I tried finding the PDF that is mentioned and it takes me back to the original page but then I click on the PDF link and it brings me back here to the thread you shared.I thought I linked this one to, but here are the detailed instructions thread.
OpenALPR Tool - Save and Query CSV Exports Steps I took To Get Mine Working. ZERO Programming Experience.
The LPR_Viewer and LPR_Downloader are free Windows programs designed by @Gymratz & @DLONG2 which allow you to automatically collect, store, view and manage plate data from your IP cameras. It does require a $5 a month subscription to the 'Watchman' plan available at OpenALPR.com. Also there is...ipcamtalk.com