There could be a few reasons you're having trouble. I'll try and cover them here. If this doesn't solve your issue, come join
Discord. It's a brand new server, so it's pretty empty right now, but it's there.
To start with, let's be 100% certain we're talking about the same folder when we say "game folder". Your game folder is something like this: "...\Steam\steamapps\common\Magic 2014\". All files we discuss will need to go into this folder, right alongside DotP_d14.exe.
In order to use the CW (and any other mod), make certain you've got the dll in your game folder. It's packed up with the core (both the packed and unpacked versions).
Next, make certain you've got the core in the right place. Art is not needed to make use of the cards. They'll show up whether their art is available or not, they'll just not have images. The art needs to be installed the same way as the core, though, so once you've got the core working properly, you can do the art the same way. The "other" wad isn't really needed, and in fact isn't a game folder the game will read. It's just a bunch of extra files for you to use when making a deck (pictures from the various games) and a function file to disable the special functions I made to allow a single token producing card to make tokens with different images. Having these in there won't hurt a single thing, they're just unnecessary.
Anyway, to make sure you've got the core in the right place, it depends on whether you're using the packed version or the unpacked version.
-Packed-
The packed version means you've got the "DATA_DLC_COMMUNITY_CORE.wad" file.
-Unpacked-
The unpacked version is a little more complicated. It means you have a folder named "DATA_DLC_COMMUNITY_CORE". Inside of that folder should be a file named "HEADER.XML". Note that on Google Drive, this folder is the
subfolder of a folder with the same named, but it contains the header "@header.xml". This is because the packed version needs the "@header.xml". If you've got the "@header.xml" file in your "DATA_DLC_COMMUNITY_CORE" in your game folder ("...\Steam\steamapps\common\Magic 2014\DATA_DLC_COMMUNITY_CORE\@header.xml"), then you need to delete the "@header.xml" file, and then cut and paste the folder "...\Steam\steamapps\common\Magic 2014\DATA_DLC_COMMUNITY_CORE\DATA_DLC_COMMUNITY_CORE\" into your game folder (cut the folder, not the folder's contents) so that this path is valid: "...\Steam\steamapps\common\Magic 2014\DATA_DLC_COMMUNITY_CORE\HEADER.XML".
If the core is already in the correct spot, then you most likely have an old version. Alternatively, you
might have both the old version and the new version. If you've got an old copy of the unpacked version and a new copy of the packed version, you might not see the new copy's contents. Make sure you've only got one or the other. If you do only have one, then you need to make sure it's the right version. If it's unpacked, go into it and find the file "Community Wad Core Version.txt" and make sure it says 741. If you have the packed version, right click it and select properties. Its size (not "size on disk") should be 123,745,114 bytes. If it's the wrong version, redownload it. If redownloading doesn't give you the right version, tell me.
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The content pack enablers, as already mentioned, are in the same folder as the decks themselves. You can get them in several ways in there. Each .7z archive of decks contains the CPEs needed to run the decks in that archive. There's also a folder and .7z archive named "Content Pack Enablers". Finally, the content pack enablers are listed after the decks (except TFM's) because the decks are "DATA_DECK_...", but the CPEs are "DATA_DLC_...Content_Pack_Enabler.wad".