New antiX-17.3.1 iso files for full and base versions are now available at Sourceforge (mirrors will take time to pick them up) as are delta patches for those who may wish to patch an already downloaded 17.3 iso.
Fixed installer debs are already in the antiX repos, so those with antiX-17.3 can simply do an
apt-get update && apt-get dist-upgrade
to get the fix and then install.
I will begin to remove the faulty antiX-17.3 files from SF.
Apologies for any inconvenience caused.