Actually the installer works as well as always EXCEPT in the presence of UEFI and Secure Boot. They also seem to get in the way of installing from flash drive. But since flash drives are sometimes seen by BIOS/UEFI as USB Hard drives, USB CDs, USB ?devices, etc you now have to look further into Boot Order/Prioriy settings and sometimes they are disabled for booting.
I have also been fighting an issue similar to yours. It appears my problem is the computer I am working on came from Lenovo with BIOS/UEFI RAID0 turned on and I have found no way to get rid of it and still be able to reinstall the OEM installed Windows 8 for the woman. That is a problem since Ubuntu (and likely Linux in general) does not see the FAKE raid0 but rather two innaccessible drives. The only thing I got to work was to turn off the RAID, install Win8 from a real install disk and then install Ubuntu from a CD rather than a flash drive (unless the BIOS/UEFI excluded USB CD is how it sees my flash drive).
I know the alt CD was removed because its primary use was (upgrades) was taken over by the install CDs. Even running the Installfests, I have not missed the alt CDs.