On the speed up your data connection I posted yesterday I left out a critical detail.  I listed a number on the current code.  That number is actually your MSL #.  You will need to get this from Sprint.  The rest of the process is pretty acurate.  Here is another site explaining this.  http://www.everythinginstinct.com/forum/instinct/boost-your-internet-speed-184.html.

If you have any problem when you ask for your MSL # just tell them thank's and call again.  This time tell them your having trouble with your internet connection.  They will tell you to enter  ##3282# and then they will tell you to enter a six digit code.  Write this down  because that code is your MSL#.  Some guy's will tell you how to do it and others won't.