From the README:

Please note that poses and full-body morphs made for version 1.0.0 and earlier may not work on this version, since the former 'hip2' actor has been renamed to 'hip' and the former 'hip' actor to 'waist'. The change became necessary in order to make Wardrobe Wizard support possible.

In general, it should be very easy to update files using the old actor names: replace 'hip' with 'waist' everywhere in the file, and then replace 'waist2' with 'hip'. Be careful if your file contains 'hip' or 'waist' as parts of longer words, though. For example, a brute-force replacement as described above would turn the word 'shipment' into 'swaistment'.

-- I'm not mad at you, just Westphalian.