All maps can be downloaded here: http://forum.fcraft.net/viewtopic.php?f=6&t=4792
Not sure how long they will be available - seems like the only memories left of Classic are on forums that are still up now.
The history of fCraft: https://www.fcraft.net/wiki/Version_history#0.644
and consequently the death in 2014.
![Płacze lub bardzo smutny :cry:](./images/smilies/icon_cry.gif)