I was looking for a download button for Winamp for some time now. I went into the way back machine, but couldn't find a proper answer why I couldn't download Winamp latest version or find the old versions for it in Winamp official website.
I'm glad someone made a site dedicated to this player so people can download the proper version for it without going to weird websites + they preserve a bunch of extra addons in it, so I would say it's the definitive way to get Winamp content for your Windows 98/Windows 2000/Windows XP machines.

Winamp Heritage