you could put some hotkeys like these int your hotkey.rc so u dont have to bother for any theme ... except the one that dont have winamp support at all, but there are only a few of em

*Hotkey Win y !Amp_Prev ;depends on your keyboard layout ;P
*Hotkey Win x !Amp_Play
*Hotkey Win c !Amp_Pause
*Hotkey Win v !Amp_Stop
*Hotkey Win b !Amp_Next
;*Hotkey Win l !Amp_LoadFile
*Hotkey Win Up !Amp_VolumeUp
*Hotkey Win Down !Amp_VolumeDown