Hi All. I had a play using fast.ai v1 instead and seem to be able to get everything to work. The short of it is that a bunch of functions from structured.py need to be copy + pasted over, and the feather loading is slightly different. Nothing else major had to change that I came across.
I have made a condensed gist of lessons 1 + 2 notebooks into one, that works with the current version of fast.ai. Hope it helps: https://gist.github.com/mnye/bb1653562b6e2d85ee44478cfdf0f5a1
I am not sure why these functions were completely thrown away from the repo, but there is a new tabular section for NN which might be worth taking a look at. It would be interesting to hear from @jeremy what his plan is for this course and in particular if things are in for a shake up now v1 is out?