Hi, there's some information in the download thread regarding this. I'll just paste it here :
If you are having trouble installing, running or downloading the module,
Check
this link
Some additional information:
Make sure you have a winRAR extracter (There are many out there.
The ".zip" thread or google can help you out.) Then extract the file to your M&B modules folder.
The directory should look like this :
C:\Mount and Blade \ Modules \ Fantasymod.
(the C: hard drive depends on where you installed M&B , of course.)
Too check, inside the fantasymod there should be a bunch of text folders, a resource folder, a texture folder, a Sceneobj folder and a sound folder.
If those are there it should work.