VPP's are points that you earn for the year and month. Therefore you need to earn 100 VPP's to achieve chromestatus for the remainder of the month you are in and for the following month. During the following month you need to earn the same again to continue at your level. VPP's also go toward any yearly bonus you may be on.
FPP's are points that you earn along the month and do not run out at the end of the month, you can use these for spending on tournaments or in the VIP store.
Effectively you need to earn a certain amount of VPP's, every month, to maintain a certain level of VIP status. I assume you are playing on Pokerstars.....as I do.
I also think you may have posted this in the wrong forum, as these are earned in both cash games and tournament play.