It depends on what system you are using, if you were using linux, you'd probably use auto trace in the command line if that's the way you work, or install frontline, which is its GTK front-end, all free and extremely powerful. There was be a windows version, but knowing the deranged attitude of microsoft, they may have blocked it after win7, as it won't make them any money, as it's free. The graphic designers I know use linux exclusively now, as it's light years ahead.
If you're using last century junk, then maybe this will help you.
Bookmarks