This is all assuming the structure (names of nodes) is similar to the other bridges and that the bridge scripts use all the same names (so "bridge" for the bridge object and "viewscreen" for the viewscreen object).
From what I know of the process, you have to attach it's the second channel. Maybe as the luminence or emission map, but then again, I'm only a scripter.
Like I said, PM Mark, Sean or Legacy (or Viper) if you really want to know for 100%.