How to delete older V image?

I have version 4 and now that I can use Bootcamp I don't need my older version
of the disk image of windows.
My problem is how and where do you find the image. Also I don't want to delete my bootcamp image file by mistake.

thanks

 

Default locations for Virtual Machines are
~/Library/Parallels
~/Documents/Parallels
/Users/Shared/Parallels

Your Boot Camp VM name is name for VM bundle in one of those folders