DD-WRT Forum Forum Index -> Broadcom based hardware
http://www.dd-wrt.com/phpBB2/viewforum.php?f=1

If the CFE that you need is not here or the 
Skynet Repair Kit Bootloader can't make it.
You can request one in the forum above.

For Example you would post in the forum 
"WRT54GS V6 CFE.BIN needed"