Weather Questions

I know stuff like this has been done before so I am going to ask if someone can tell me how.

First, is there some way to turn off the sun from script? Or adjust its brightness levels?

Second, I am getting weather inside my buildings. I saw this resource, its 5 years old.
www.garagegames.com/index.php?sec=mg&mod=resource&page=view&qid=3647

Do I still need to use this? IS there an updated version? Or have I done something wrong?
Additionally, will it keep blowing wind and fog out?

Finally, I saw this resource for Day and Night cycles:
www.garagegames.com/index.php?sec=mg&mod=resource&page=view&qid=5417

Has anyone gotten it to work with 1.5.2? If so would you please share whatever updates need to be made?

Thanks in advance.