Need help installing star wars galaxies?

I already have swg starter kit and then my dad bought me the complete online adventures because we couldnt find any expansion packs only that 1 thing no matter where we looked. Ive tried uninstalling the starter kit and then puting the other 1 in bu not working, and its not uninstalling. also is there suppose to only be 1 disc beside the dvd in the complete online adventures?