Looks like you have a Telus version. Is there a lot of branding during boot, etc?
These include everything and will bring a phone back to stock including all recovery, bootloader, and software.
Whether you can crossflash between the E973's I have no idea, but all you're really going to get for the most part is bell's crapware (I'm guessing) versus telus' lack of crapware.
It's not like it will let you run the phone on a Bell SIM.