Well im new to this whole thing to but after reading up about a bunch of stuff i decided to give it a try and ended up with the same problem. your phone is still not unlocked, it was just put in bootloader mode and if you want to reset it back to manufacture settings hold down the two buttons above the windows and okay buttons and push in the reset for a few seconds with your stylus (known as a hard reset). This should reset bring up two options, use the qwerty keynoard to hit R then when its done hit the space bar. Go through the tapping the screen then go here and read up:
http://http://forum.ppcgeeks.com/showthread.php?t=33857
It is done by GAMedics and how i managed to pull it off with a little help from xda. You need to get version 2.4 of Olipro and then run it to unlock your phone then get a Sprint rom and use Rom Utility Update (RUU) to flash it, then do a soft reset (just push in the reset button with the stylus) when the tap to configure screen comes up then put in bootloader mode (hold power, camera, and push in reset for a few seconds) and upload your custom rom.
Another thing is make sure your roms are using a blank RUU becuase i tried opening the sprint rom through a rom already using RUU and got hung up with the splash screens becuase it never flashed the radio but the OS rom instead. These instructions should work fine with your phone becuase i have the same one through qwest and just got new xv models through Verizon becuase qwest is dropping their own service through sprint.