This is what the download for the website said:
" **BEFORE YOU BEGIN** Using Windows Explorer navigate to C: Program Files LucasArts Star Wars Battlefront II GameData Addon and delete these folders: BF2, AT4, AT5, BS1, BS2, GO1, KM1, RH1, RNV before you install +123 v2.2. These folders represent the mods that are no longer approved for competition at
www.globalwf.com which include +123 (original) and the GWL Custom Map Pack.
This is a self-extracting Zip file. The folders BF2 and DLC will be extracted to C: Program Files Lucas Arts Star Wars Battlefront II GameData Addon
*If you do not have an Addon folder create one in the GameData folder."
---Does this screw up my normal BF2 map list for JBA competition??
Also, When I click to extract, it asks me to choose a program from a list, or use the web. What's the safest, best way to do this?
Thanks