Wireless or router?

Good morning,
Please forgive me, I am new and not sure where to ask this question so I am just jumping right in here.
I have a Macbook running a novatel wireless usb 760 modem to access the internet. Through this connection I also access the internet for my Ipad, 2 ipods, and my husband has a netbook he also connects with. We have bought a kodak wireless pulse digital frame and customer service tells me that I have to have a router in order to wirelessly receive pictures. My gut tells me this can't be right, but my head tells me I don't understand how any of this wirelss works, so he may be right.
I hope you all may have answers for this question.
Again I am sorry if this is in the wrong place