i have a couple ip's for my server, i want to change the first two ip's that i assume are tied to my custom nameservers, to the different ip's I have. Most of my sites are working off these two default ip's.

Can someone point me in the right direction? I used search but couldnt find what i was looking for

The primary IP is considering the one which is assigned to the eth0 first, usually it is written in the /etc/sysconfig/network-scripts/ifcfg-eth0

However your best will be contact support via Orbit and ask them to change the order of IPs associated. Otherwise you may end up with unbootable server!