I dont know about the last beta that was posted here not long ago(which i also posted on our ex forums) but when checking MozillaZina it was still posted Under "1.0.1",This one is posted under "1.0.2".remember this is still a beta and not an Offcial release,which may come next week,so you might also wait.
1.0.2 Latest beta
1.0.2 Latest beta