First off, the instructions aren't clear on this, but you can't mix 1.0 and the latest releases. If you want to run TFTD (and therefore need something newer than 1.0), you have to completely remove any 1.0 installation. If you don't, it will prevent you from running a recent nightly. So, I'd suggest removing all of the OpenXcom files from your computer, then re-install just the nightly and try from there.