R.R.
Sounds like she's doing great! : )
When I gave birth the first time I was sore and having trouble peeing no matter how long I sat. A sweet nurse told me to turn the faucet in the sink on, and that the water sound should help me go. I was skeptical, but tried it and it worked! When she came back I thanked her and she told me she used the technique with the her little ones. So when my children were training I used the trick and it helped, yay! I'd suggest when she finishes going potty and is ready to get up suggesting to her she try again before getting up which might help. If she tells you in a couple of minutes she needs to potty again try the water trick to help her tinkle sooner.
As far as getting her on the toilet, since she's been on the potty chair you'll need to train her again on a potty seat for the toilet. Here are two "princess" ones I ____@____.com:
http://www.target.com/Disney-Princess-Soft-Potty-Seat/dp/...
and a folding one:
http://www.target.com/Disney-Princess-Folding-Potty-Seat/...