www.jfileupload.com

I have installed JDiskExplorer and I am able to upload files, however the remote host panel is always empty (at connection time and after an upload)

After uploading a file (it's sucessfully uploaded) I get this:

INFO: Upload completed
jfileupload.transfer.client.explorer.ftp.FTPRemoteTFileSystem E
SEVERE: org.apache.commons.net.ftp.parser.ParserInitializationException: Unknown parser type: NETWARE Type: L8

What can be the problem?

I forgot to mention that I upload to an FTPS server (AUTH TLS)

You should have the same problem with FTP (unsecured). The error you report means that the applet doesn't understand FTP server signature and then cannot parse result of a LIST directory command. Could you try to modify the FTP server signature. Usually, it's available as parameter. Try to replace the "Netware type L8" by "Unix".

That worked. However, I am only able to see the contents of the remote server after I upload something. The downloads work fine after that. How do I get an initial display of remote files?

I think the problem comes from "account" parameter. Are you using it ? Try to remove it and add:
<PARAM NAME="param6" VALUE="accountpwd">
<PARAM NAME="value6" VALUE="true">

I tried the 2.0 version and it seemed to solve this problem. Guess I'll upgrade my license to 2.0

Great !

have the same problem as jorgeo with version 2.4,
when loading the applet does not show the directories of the remote host, where it cools and upload a sample file directories.

Are you also using FTP with JDiskExplorer ?

yes, I use ftp with jdiskexplorer