If you ROM Manager to install you just open it, scroll down to install ROM from SD card and you select> 928Droid Black Glass X DeOdexEERR Theme. Then it will have you check weather or not you want to backup ROM again and wipe data/cache before install.
Just read the instructions in 928 Install Instrustions if you want to do it manually.
Just read the instructions in 928 Install Instrustions if you want to do it manually.