O.k. man, you simply plug your phone into the computer via usb, if it is on four color screen go to the titan forum and look for a rom of your choice, you downloadload, unzip it or unrar it (i use winrar) open that extracted folder, click on the ruu update utility.exe. go to the titan foum all info is there. also, you are taking your titan onto metropcs, below is the link you need to click on and read, for that to be successful.
http://forum.ppcgeeks.com/showthread.php?p=495232
Hope this helps you.
p.s., don't forget to click thanks.