help removing sunroof window without removing roof lining

[somerandom]

Hi guys, im trying to remove the sunroof screen to replace 2 brackets that have snapped off which are suppose to hold the window down (at 100-110kph the sunroof will pop up a little and than the sound of the wind is annoying, and water will get in.

im not sure if it is a holden factory sun roof, i can't be sure whether it came with the car from factory or put on some time after? anyone shed some light on a vr 1994 calais sedan

how do I remove it (just the window part, not the whole sha-bang) I can see 4 bolts (maybe 5m?) is that right?

hoping i don't need to take the roof lining down....

[somerandom]

edit: never mind, problem solved