Creating thumbnail for web

[Ekmik]

How can I create thumbnails, and export the original files and thumbs to my webserber?
Years ago I found it quite easy to do in xnview, but now in the version 7.140 I Cant figure it out.

I've attached a screenshot of the structure that I I used earlier. (The "index.html" is just redirecting to the "thumb.html")

[xnview]

?? I think that you talk about XnView Classic?