Title says it all
1. Go to your c: or d:, whereever you have AVA installed.
Open the IJJI (or whatever folder holds AVA) folder, then ENGLISH. Copy the map you find there (AVA)
Now, (you need to download and register on steam, then log in) all you need to do it to go to program files, steam, steamapps, common. Paste it there.
Now, go to steam store (in steam application), search for AVA and press "install" or "download". It'll take 2 minutes to patch. Now, you can play it!!!!!
Mine directory for AVA folder:
C:\ijji\ENGLISH (look for where ava is installed in what folder)
Mine directory for steam folder (where you need to place AVA in):