I've done three cabs, all involved some vectoring of existing or original art, many hours of real work, tracing in Illustrator, and all the files are free for the taking. Thanks for finally sharing them.
A word of caution, though: these vectormagic/auto trace programs make an image that looks "good enough" but not really great, IMO. It is just a computer's best guess where to put paths, so you get weird splotches of color. I tried it myself early on, but spent so much time tweaking the automatic result that eventually I just did it all by hand. And some illustrations just aren't meant to be simplified into vector art. Might be good for very simple logos and such though.