The standard approach is to damage Burhak quickly, which will drive him off, and then go after whichever Salthi your wingman isn't attacking. The transport will never be in danger, provided you route Starkiller quickly.
How I usually do it is to save at least 1 HS. I afterburn to meet Burhak, whip around onto his tail, fire off a salvo to knock down his shields, and then fire a missile off. That usually does it--he'll burn away and usually retreat at that point. Then quickly figure out which other Salthi is not being attacked by your wingman, and afterburn over to him. Assuming that your wingman is alive and the transport is in decent shape (i.e. you got the Krants before it showed up), you should have enough time.
Don't worry about Burhak getting away. He shows up again in SM1, I believe? and you get another crack at him.
I also had luck, once, with taunting Burhak, and then going after the two wingman. He concentrated on me, but didn't manage to kill me, and we got both his wingmen. Then I took my time and managed to actually kill him. Don't know if this is a repeatable strategy, though...