Modules can be downloaded from the following web site:
ftp://ftp.crosswire.org/pub/sword/modules/
or
http://www.crosswire.org/sword/download/idxcommon.html
Note: Be sure the modules being downloaded are the correct version for the operating system you are using.
Locked Modules need a key to work. If you do not have the key for a locked module do not install it. If an installed module does not display correctly, and is completely unreadable, it may be a locked module and can not be read without the key.
New modules can be installed any time after the program has been installed. If the new module is compressed (zipped), extract the files to a temporary directory. (You need to get a program for doing the extraction if you don't have one. You can find a free one at http://www.cdrom.com/pub/infozip/ ). Run the program Setup.exe that is in the temporary directory where you extracted the files. Follow the instructions in the setup program.