Good luck, I had the most success with lortys plugin but even then it was tricky. The VFD is so much more sensitive because it is very fast responding and you see stuff you dont see on a lcd. Also, mine had lines 2 & 3 reversed and lines 3 & 4 would only allow text to be displayed to the 10th digit. Later found out you had to add 15 to the location to get past 10th digit.
I have decided all the extra headache is just not worth it and am going to buy one of arbys reversed units.
Just this mans opinion - throw that display in the trash before it drives you crazy