Hi Lyndsay,
Nice try, but the answer is no, the fact that Pluto has other objects orbiting around it does not necessarily mean it is a planet. Astronomers have found asteroids that have other asteroids orbiting around them, as described in this NASA story from 1999: http://nssdc.gsfc.nasa.go...nia_pr_19991006.html
The other planets that have moons (Earth, Mars, Jupiter, Saturn, Uranus, and Neptune) are all significantly larger than their moons. The radius of Pluto's largest moon Charon, is nearly half the size of Pluto's radius. In contrast, our Moon's radius is only about 1/4 of the Earth's radius.
All of the planets dominate their neighborhoods and have pretty much cleared the path of their orbits of debris like asteroids and comets. In spite of the fact that Pluto appears to have captured several objects in its gravitational pull, Pluto does not appear to have cleaned up all of the debris along its orbit.
Back when Pluto was first discovered and labeled as a planet, we actually knew very little about it. Our knowledge has increased since then and the astronomers and planetary scientists who decided to reclassify Pluto as a dwarf planet based their decision on the currently known properties of Pluto.
The planets in our solar system can be grouped into two categories:
(1) The rocky terrestrial planets - Mercury, Venus, Earth, and Mars
(2) The gaseous Jovian planets - Jupiter, Saturn, Uranus, and Neptune
We don't know a lot about Pluto's composition, but we know Pluto definitely does not fit into the Jovian planet category. Unfortunately, Pluto doesn't really fit into the terrestrial planet category either. Pluto is much smaller than the other terrestrial planets and it appears that Pluto's composition may have more in common with Kuiper belt objects. In fact several Kuiper belt objects that are nearly as large as Pluto have been discovered. Scientists faced a dilemma when these objects were discovered - either we had to start calling all of these objects planets, or Pluto needed to get demoted.
We will know a lot more about Pluto when the New Horizons mission arrives there in a few years.
Kris