Thanks George, I assumed that they were the same but when some people said they were mounting the pre-amps in stomp boxes I started to wonder. The reason I asked is because I recently rewired a flying V I had from an active pup circuit to passive. Don't get me wrong as a passive rewire it doesn't sound bad but I'm thinking it might sound better if I put an active circuit back in it. I wanted to build the circuit myself instead of trying to put the old one back in. I couldn't find any DIY projects on the Internet that actually used the term active pup circuit. But when I did a search for onboard electric guitar pre-amp I found a few decent sites on the subject.
http://www.till.com/articles/GuitarPreamp/
http://www.diyguitarist.com/