That's correct.
A few facts you seem to disregard :
1.The system works in the regular 1.17/1.18 version of FPSC
2.It does NOT require RPG mod,it's a preference of mine to make it work under RPG Mod. I understand far better than you what it is compatible with,after all I wrote it.
3.The only difference between the RPG mod and the Stock version of the system is in the variable commands , which were adapted by SecretiveOps for 1.17/1.18/(with and without,doesn't matter)PB. His version is in the last post of the thread.
Hope this clears something up

PC Specs:Windows 7 Ultimate 64-bit,Intel Core i7 960 @ 3.20GHz,NVIDIA GeForce GTX 480,12GB RAM,2x Western Digital 997GB HDD