So trying to install Debain 7.0 onto my servr and for some reason even tho I input the static ipv4 address in the instalaltion when it comes to the apt mirror selection the installation switches to IPv6 (DHCP) (if I ping the static IPv4 address during the instalation it stopes pinging when it comes to this point), how do I disable this? I always have to skip this part of the installation and it's getting annoying.

After the 1st reboot in the interfaces only the dns servers remain from the IPv4 that I inputed everything else is set to DHCP IPv6.

Any chase to disable the instalation even trying to connect vias IPv6?

Lose the kernel module ipv6.ko. Move it. That's one way :-D. There's also stuff you can do in
proc/sys/net/

echo 1 or 0 to files to enable/disable things. Read up first.