When you installed HSFX, the mod enabler was installed too. Open your main IL46 folder, and look in the lower right corner, you will see a yellow icon, named JSGME. Right click on it, and create a shortcut. Cut and paste that onto your desktop.
Then, run it. On the leftside, you will see the list of mods to enable. Lets just start with the HSFX History mod, which should be activated first. Click on that name, when you do, in the middle of that window, you will see a single arrow pointing to the right. Click on that arrow, and after a few moments, the mod will show up on the rightside window, it is now activated. Click on the "Close" button, after it closes, just start IL46, and you should have all the ac and maps available.
Once you see it up and running ok, you can shut down IL46, open the JSGME again, and add in other mods. Look inside your main IL46 folder, there are readme's in there explaining what the other mods are for. But the History mod has to be activated first, always, then add in the others.
Eddie