Well there is this guy named FSXninja and he has all these realism pack and you can get em all in 1 pack called Multipack and I installed everthing to what I think is the main folder since he replied to comments and said to drop everything on the main folder, so thats what I did I just installed everything in any way possible and it just wont work :/
Here it is just go to the description section:
The YouTube won't load.
If it's scenery it should go into one of the scenery folders.
That's my best guess.
It's all these snow effects rain effects glass textures window textures
Put the folder into the effects folder.
If they don't work, then put the contents into the effects folder.
They may have to be out of the folder to work.
Let us know how you do.
Last resort, email the designer and tell him what you tried and ask what you can do.
They are usually quite helpful.
Okay I'll try that, Thanks! I'll keep you updated