Well first off you need to check which amp program you are using. It's probably geekamp, and I just checked the docs and it's for winamp only. I actually don't think any of the amp programs work with wmp, although some work with foobar.

I suggest you figure out how to fix winamp, try a different media player (foobar, qcd, whatever), or turn off the built in media controls and do it the old fashioned way.