The cheapest way to approach this "possible" problem is to copy down all the data from the box and take it to a local health and enviornmental agency and ask them to help you id the manufacturer.. If you can track down the manufacturer, you should be able to find out what is in the tile..
If the info comes back positive for asbestos content, then you will have to pay someone to come in and bag it up.. Not a big deal, don't let them make a big deal out of it.. If you let government agencies get involved, they will try to make a big deal out of something that isn't..
If this tile is positive for asbestos, it will be non-frieable.. In other words, the is no hazard unless the material is broken up where the asbestos can be released. Since it is all contained in it's original boxes, then the handling will be very simple and shouldn't cost more than a couple hundred buck for the disposal..
Just a thought; You may have some recourse with the person who you purchased the house from.. They may have some responsibility, especially if it's going to be very expensive to dispose of it..
Also you may want to look around the house and see if any of this tile was installed someplace.. Not a big deal now as long as you don't have to disturb it, but later you may have to pay someone to remove it if you do a remodel, etc.
If you live in a small community, the local fire department would be your first point of contact for information and assistance, but like a say, don't let some 'good intentioned' civil servant make a big deal out something that can be handle as simple hazardous waste.
Remember there are just as dangerous stuff under you kitchen sink.. There are simple ways to dispose of that also..