use ftp
1. In windows you cannot see any images from Unix
2. Download Netterm(free,many universities use this software), you can login your Unix account from windows.
3. Open dos, then use ftp.
Start -> run -> cmd
c:>ftp 123.123.123.123
enter your account and password. when you login your unix account, use command "get" to download all the files you want.
4. good luck. :-)