Have you tried bringing her to the store and letting her pick out new underware (get a couple packages) and let her wear them. If she wets/dirty's them put another pair on. I know it can be a hassle with a bunch of wet/dirty underware but give it a week and see what happens. I did this with my DD, not sure if it took one or two weeks and she was potty trained. "When this package of diapers is gone you'll have to wear big girl underwear. What would be a good motivator for her-a small piece of candy when she goes on the toilet-I know it is not the best option but hey-desperate times call for desperate measures! Hope this helps. I didn't have to deal with potty training issues-but did have to deal with my DS not sleeping in his own bed-it can be frustrating when nothing seems to work! It will come though
*I didn't read your first post-sorry for some duplicate info
Have you talked with her-asked her why she doesn't want to use the toilet?