Go here for Unlocking phone :
http://forum.ppcgeeks.com/showthread.php?t=20370
And to flash have SD Card 2GB or less, format to FAT32. Download NSF rom extraxt signed.nbh file to sd card, rename to VOGUIMG.NBH Place SD Card in phone, place in bootloader, load rom. Or you can do it via activesync. SD method is easiest for me.