We need some sort of an adaptor to work with our kitchen faucet. The adaptor that was included with our Kenmore portable dishwasher does not adapt to our faucet.

Give the place you bought it from a call, and maybe they can get a proper adaptor for you. If not, then Home Depot or another hardware, or big box do-it-yourself store can certainly help.

Have you remove the faucet aerator?