Are you in a rush to potty train her? (I know some people have a 'deadline' so their kids can get into preschool and what not.) If not, the idea of giving her a bath after she's pooed is a good one, IMO. Warm water works on your bladder but not on your bowels.
If you have to potty train her now, does she consistently go at the same time every day? (I mean with bm.) If you watch her carefully she'll give cues that she's going (I'm sure you've seen them) and instead of letting her go in her diaper, grab her real quick and stick her on the potty.
BM is a much harder skill to master than pottying. It is very, very normal for kids to be able to go potty and be completely potty trained. . .except for bowel movements. Not that it's less frustrating--just common!
