Solution
For list of reasons WinSCP cannot parse directory listing and possible resolutions, see documentation.
Before posting, please read how to report bug or request support effectively.
Bug reports without an attached log file are usually useless.
Is the problem in polish configuration of date? (I guess this after reading FAQ and some forum posts)...
Wouldn't it be possible for WinSCP to ignore those three letters of month in listing?
Wouldn't it be possible to WinSCP to support international settings of systems in the future (as putty does)? We could help - if needed...