To start scroll down the post till you find the downloads section.
Download the AeroLibrary include only zip.
Once Downloaded Follow these steps:
1:Click the arrow down button at the top of firefox, then click the little folder icon next to the file you just downloaded.
That will open up your downloads folder.
2: Right click the folder and click cut.
Then go to your simba/includes folder.
C:\Simba\Includes
1:Then Click in a white spot inside that folder, and click paste.
2:After that ,right click the folder and extract it, then rename that folder to just AeroLib
3: The zip is no longer need, so you can delete it.
2: Installing Plugins
To install the plugins:
Download the plugins only link on the thread.
1:Then ,follow the same steps as before, but this time paste the file in to your plugins folder
C:\Simba\Plugins2: After you have pasted the folder, in the correct location, extract it and delete the zip.