lol this has been posted yesterday why not search for it... and to set up:
install Arcsoft MMS_Sprint_5_0_94_128c
go to messaging and all messages
hit the button nexst to the x on the left
scroll down to pic/video options
go to gsm servers
settings
Server name - sprint
gateway= leave blank
port number- 80
server address-
http://mms.sprintpcs.com/servlets/mms
connect via- The internet
send limit 500k
hit done
hit set as default
hit ok