tranny dont like to shift unless i make it

What's wrong with my 92 chevy1500 tranny the only way it will shift from 1st is nutral back to drive (http://www.askpedia.com/q/1AFCB/Whats_wrong_with_my_92_chevy1500_tranny_the_only_w ay_it_will_shift_from_1st_is_nutral_back_to_drive)

do i have this set up right