I had my ppc-6800(cracked screen) replaced by a refurb by sprint. After setting up the phone connection manually(long phone call

)- I can't figure out how to set up the internet connection. I searched the forums a few times and read the internet sections of the manual, but could not find the question answered for sprint specifically.
I made a new modem connection to #777- I have not figured out the username/password/domain to use in order to connect. I'm going to continue searching but if anyone can point me in the right direction it'd be much appreciated.