Help...!

I am technologically "challenged" and need some input... I have tried to connect the HP932C to my laptop today...
I have an USB adapter from MAC but the computer end of the cable does not fit the cable end from the printer...

Is there another adapter that I need, or, is there a cable to connect from the laptop USB port to the USB port on the printer...?

Where can I find the cables...??

Or, should I just give up and try to use my old PC to connect to the printer and use a flash key to transfer the test I need to print...??

Thanks in advance for any help you offer... and, remember, I am new to setting things up for myself in the computer world...

Pesky-Person