On this page you can calculate how far your collected GCW points will bring you in the next rank update:

http://swg.activeframe.de/bb-std/tp-en/main.9.html

On the other pages (top menu) you can find other useful informations like how many ponts you need per week to proceed from a certain rank. There is also a guild roster where you can see which guilds/players have which rank and how many points/kills they gained last week and in total.