Re: potty training problem
I know you were embarassed, but swettie, kids have accidents, especially when there is excitement around.
Now, this is only my opinion, but I absolutely would not put that diaper back on your daugther during the day as it would only be a step backwards in her potty training.
My duaghter was a very easy one to potty train, but she did have a problem with peeing on herself whenever she was at someone else's house. I don't know if it was because she was in a different surrounding, or just because she was having too much fun to stop and let me know she had to use the bathroom. I started taking an extra change of clothes and undies for her when we were visiting people. I would also show her where the bathroom was as soon as we got to whoever's house we were visiting and told her that she needed to be really aware of when she felt like she needed to use it.
It did seem to help showing her where the potty was at other people's house as soon as we got there, because sometimes she would tell me that she had to go right then. The extra change of clothes helps in case there is an accident too.
Good Luck, I know it's frustrating, but kids tend to potty train in their own good time. My son was almost 4 before he was potty trained, and even then he had trouble with doing bowel movments in the toilet for some reason.
Take care and keep us posted.