Its different rpg system, You can find it here:
https://vborg.vbsupport.ru/showthread.php?t=108790
But im stupid, that's all. I just saw one person which asked about that before, so i thought this mod need special integration, but i had to change vbulletin options->rpg hack cash options
"uttpoints" for "credits" and that's it, You can add this rpg mod to list of hacks working with vBcredits.
Anyway, thanks for trying and sorry for disturbing .