Stock rom links for cdma touch

[dan-htc-touch]

does anyone know if I can flash the spl only from a different carrier if I have the dumped rom from my carrier installed, I need my phone to appear to be stock, although I am sure the dumped telus rom is probably compressed different. does the spl have to be unlocked just to flash, or is it also nessesary for it to be unlocked to run the custom roms as well.

I am guessing that with the spl of a different carrier, the guy I am giving it to would not be able to use telus updates, so I must beg imcokeman for another version of his spl, that is still unlocked, but displays in the bootloader as if it is stock. I would be very appreciative if you would help me out with this.