Sure you downloaded it from:
I have tested it on two XP machines. It works for me.
Make sure you got this:
- Winamp 5.05 with Media Library.
- Windows XP (Home or Pro, doesn't matter)
- NxS Balloon Tip v2.7 installed.
- The right Winamp instance.
Maybe you are running a different installation of Winamp.
Have you tried my other plugins?`