I can see your name in the list for ZNT.
1) Maybe the project is visible in your Paratext, and you can see it if you scroll down in the list of projects in send/receive dialog. (The scroll bars are not very prominent). You can also see more project names if you can make the send/receive dialog box taller, by dragging the top edge up or the bottom edge down.
2) If you have another project on your computer called ZNT , you cannot receive this ZNT unless you delete that other project. (You could back it up to a file, then delete it, if you still want it after accessing the Zimba NT).