I happy to report that [c]CWD .[/c] works in 1.20beta7! Thanks!
Now only [c]SIZE[/c] and [c]STAT /[/c] are missing to really call this a proper FTP support!
One minor caveat: only one FTP connection is supported at a time, most GUI FTP browsers open a second connection for file transfers. Mentioning this on the Wiki page should be enough for users to avoid this issue.
Great work so far - thanks a million!