How can I make my dog accept cats? *Beagles!*?

:( i want a beagle. anyways back to you! ok beagles usually have no problems with other pet, it says so on this website! http://animal.discovery.com/breedselector/dogprofile.do?id=1220 and if you must train your dog read this article http://www.wikihow.com/Make-a-Cat-and-Dog-Get-Along