Hi Kristi:
I've tried the floor potty chairs and they were unsuccessful. What worked for my family was the over the toilet seat potty chair.....one played music while my daughters sat on it. You could try the Dora over the toilet seat. And give her a special new book to look at while she sits on the toilet, just to introduce her to the process of going potty.
Some children are very excited about going potty and others have no interest what so ever with the potty.
Start by introducing her to the concept of sitting on the potty and keep a stool by her feet, so she can practice getting up to the toilet and getting herself down from the toilet.
Potty training is a whole new concept, fun along with frustrating....best of luck with it!!
`K.