Hi Chuck,
I can't vouch for whether this is a beta blocker or not, but when I believe I read
that this is temporary.
The bug is here:
https://bugzilla.redhat.com/show_bug.cgi?id=785815
You can add an option similar to the example below so that it can find the squashfs.img
and things should work pretty normally.
root=live:http://dl.fedoraproject.org/pub/alt/stage/17-Alpha.TC1/Fedora/F...