Hmmm.... With Canderous, I'd say get the ICE breaker, then find the brig console, release the detention forcefields then activate riot system, then unlock the detention doors, go in and activate the console. If this doesn't work then maybe you have a mod issue (If I remember right, Talchia's hardcore mod makes those torture lasers zap to a kiling point.) If that happens just remember to go the you, bastila, and carth on some planet and activate cheats, then type "setstrength 99" or "invulnerability 99" or both.
With Juhani, just remember not to have stealth active when you use the console.
Hope that helps
(BTW I have Best Of PC too, there's an issue with Vista Ultimate, screws everything up, try Vista Home Basic. works 4 me