Congrats on the birth of your daughter!
I didn't even burp my son for the first few weeks of his life! He always fell asleep after feed, and so I didn't wake a sleeping baby. He then got bad wind, doh. I also used Infants Friend every now and then, and it seems to work well sometimes. I know some people use it at every feed.
Have you tried different burping positions? Sitting on knee, over shoulder? Sometimes having her lie down for a minute and burping again might work well. Also, if her tummy is sore, lie her on the change table and do circular motions with her legs might help.
Good luck and enjoy your girl!
Michelle, mum to James born 15/9/03