For some reason, whenever I try to connect to an FTP site, it doesn't work. However, yesterday, I was able to connect to a certain FTP site. But today it isn't working.

I'm on Windows ME, and it isn't working in Firefox, FTP Explorer, or IE.

Could somebody tell me what the problem is, minus the fact that I'm using ME?

EDIT:

I removed the FTP site because it could put my friend at legal risk.