I was having this issue as well. It turns out that, while with K1 you can put things in the "files" folder directly, and with K2 you can do this for many mods, if you plan to use a dialog.tlk file in the K2 port, you have to instead use a "dlc/mods_english" subfolder. (The "Mobile TSLRCM" release is set up this way, which is what made me decide to check if that layout worked.)