Thanks for the pointers. Actually, all the users are created manually, so that definitively should be included in the trigger. Other than that, i'd have to rewrite the wheel, which seems a little redundant. Unless i'm approaching it the wrong way, because my idea is for the user to receive an email when the password is updated, hence Dan Mardsen's Event plugin, but now i'm back to just trying to receive it myself as an admin, both to no avail.
Anyway, thanks for the help, much appreciated.