Hi T.,
Your situation sounds just like mines. My 2 1/2 yr old girl is doing the potty training thing now, too. Here are a couple of things i tried to do that helps me deal with the pullup situation...
1. Being that she tries to do everything she see me doing, I never used the potty chair. Instead I bought the Dora mini-seat that you put on the toilet seat, as well as the lil' step stool (toys-r-us).
She took to this much quicker because she already knew that Mommy makes a peepee in the "Big Girl Potty", allowing her to see me repeat the process of:
2. wipe the "monkey" with the tissue and
3.flush it.... then...
4. bye peepee/poopoo (waving in the toilet) bye, bye...
5. Normally follow a lil happy song and of course dont forget
6. the stickers(using this method of only giving her stickers,that i got from Staples, when she makes it in the potty).
Most imporantly,
7. I really emphasis wearing panties.
Only use the pullups during knap time or when she's down for the night.
IF she makes a mistake and goes on herself, you can emphasis how that is a no no and how a big girl like mommy goes to the potty and let her know that she won't be getting any stickers...
Trust me they want the stickers
I usually put one on the back of each hand, allowing her to do what she wants to with them. The clean-up is worth it if she's getting the picture.
It more about us as mothers and about being consistant and disciplined when it comes to emphasizing to her how important the "Big Girl" things are.
Good Luck and Stay Strong, It'll come...
Ms. L.