I just installed 12.04 on a Dell Latitude 6520 with the Intel 6205 wireless chip. The install process asked for "iwlwifi-6000g2a-6.ucode", however the only related file on intelwirelesslinux.org is "iwlwifi-6000g2a-ucode-18.104.22.168.tgz", which contains the previous version - "iwlwifi-6000g2a-5.ucode". I'm on kernel vmlinuz-3.2.0-26-generic, btw.
I've done quite a bit of searching and haven't found the file, but I have found modinfo dumps of people's systems in forum messages that show it.
Could someone please let me know where to find it? It's the only thing left to get the system running flawlessly.