No worries: I believe the problem lies with in your sources. Here's the fix,
In a terminal type: pico /etc/apt/sources.list
Replace or append to the file,
Code:
deb [arch=i386,amd64,armel,armhf] http://http.kali.org/kali kali-dev main contrib non-free
deb [arch=i386,amd64,armel,armhf] http://http.kali.org/kali kali-dev main/debian-installer
deb-src http://http.kali.org/kali kali-dev main contrib non-free
deb [arch=i386,amd64,armel,armhf] http://http.kali.org/kali kali main contrib non-free
deb [arch=i386,amd64,armel,armhf] http://http.kali.org/kali kali main/debian-installer
deb-src http://http.kali.org/kali kali main contrib non-free
deb [arch=i386,amd64,armel,armhf] http://security.kali.org/kali-security kali/updates main contrib non-free
deb-src http://security.kali.org/kali-security kali/updates main contrib non-free
Control O, and Yes to overwrite, Cntrl X, to exit..
Then run, "apt-get update" and "apt-get upgrade". Than should do it for you