FYI. I got latest version yesterday and finally it can log in on Veer's FTP server.

Here is a version info:
FileZilla Client
----------------

Version:          3.3.3

Build information:
  Compiled for:   i686-apple-darwin9
  Compiled on:    i386-apple-darwin9.8.0
  Build date:     2010-06-13
  Compiled with:  i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5465)
  Compiler flags: -g -O2 -Wall -g -fexceptions

Linked against:
  wxWidgets:      2.8.11
  GnuTLS:         2.8.3

Operating system:
  Name:           Mac OS X (Darwin 10.4.0 i386)
  Version:        16.100