a litle perspective from me.
J1.0 and J1.5 translates in different wethod. J1.5 use .ini files, whereas J1.0 use .php files. They behave differently in your Joomla Website. CB is using the old J1.0 .php language method.
now, like i said before, i dont have experience w Joomfish. But I do have an experience with another language manager for J1.5.
It only reads the .ini language files, not the .php language files. It can't read CB's language files (which is written in .php). Maybe the same thing happens with Joomfish. So, to customize/translate CB in J1.5, just do it directly to the .php file.
I think u should get help from Joomfish developers too for this issue. And i'd really love to hear the solution too, so please post it here (if you don't mind of course;) ).
Just trying to help, sorry if i bother u with something u already know
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