The rules are generally as described in the 20th Anniversary Edition of Vampire: the Masquerade sourcebook. This can be purchased from DriveThruRPG.
We have our own Player Handbook which is built to welcome anyone of any level to our community.
GVLARP-Player-Handbook-V1.3.pdf (26 downloads)
We will also add documents here that are useful short hand for various scenarios:
VTM-Quick-Guide-ST-Screen.pdf (16 downloads)Combat Reference Sheet (99 downloads)