Radzinsky worried about Swan Station model, Sawyer convinces Sayid to say he's a hostile

Sawyer arrives at the Flame Station and he and Jin proceed inside. Radzinsky says that he's worried that Sayid saw the model for the Swan Station and the survey for where they plan to build it. Radzinsky wants to shoot Sayid, but Sawyer says he wants to talk to him first. Jin pulls Sayid out of the storage closet and sits him in a chair. Sawyer tells him to identify himself as a hostile because under the terms of the truce, they can shoot him if he does not. Sayid says that his people do not refer to themselves as hostiles, but that he is one. Sawyer then begins to take him to the barracks, ignoring Radzinsky's objections.

Is the reason Radzinsky is so worried about the hostiles knowing where the Swan Station will be built because it is outside of the boundaries of the truce? Or, does he just want them to know nothing about the purpose of the Swan?

Radzinsky building a model of the Swan Station at the Flame, Jin looks for a plane

As Jin sped up to the Flame Station in the Dharma jeep, it was good to see it the station again, not blown up by John Locke. Once we see inside the Flame, we finally see the elusive Radzinsky, who was Kelvin Inman's partner in the Swan Station who put a gun in his mouth and pulled the trigger. In 1977 though, Radzinsky is very alive and is builing a model of the Swan Station, meaning it does not exist yet. He is specifically working on the geodome where the button was pushed every 108 minutes.

Jin bursts in a goes towards the monitors and prints something on the printer. Jin tells Radzinsky that he needs to see the radar logs because he needs to know if a plane landed on the island. Radzinksy treats Jin like he's crazy for asking about a plane landing on the island which angers Jin who throws him against a wall. Jin convinces Radzinsky to put out a system wide alert to everyone asking if anyone saw a plane. When he asks Jin why the plane is important to him, Jin only replies "It just is."

So, what is Radzinsky's job on the island? Obviously he's important because he is designing the Swan Station and runs the Flame on his own. He seems to have the Swan laid out pretty thoroughly, so how long from now will it actually be constructed and why?

In the shots of the monitors (shots 8 and 9), two of them are cameras on the island and one appears to be a news broadcast. The two top corners are odd though. Can anyone distinguish what the images are of?