Bootloader to ATmega 328P

CrossRoads:
Did you read the prior reply? Connect the AVRISP MKii to the Uno, plug in your blank chip

Board must be powered from USB, or from Barrel Jack/wallwart. Then:
Tools: Board: Arduino Uno
Tools: Programmer: AVRISP MKii
Tools: Burn Bootloader

Am I supposed to in some way inform the PC / Arduino environment which port the avtisp mkii is on??? The response I get from the Arduino IDE is: 'error while burning bootloader' and also 'avrdude: usbdev_open(): did not find any USB device "usb" '

Am I supposed to have avrdude on board this laptop?? I don't even know what avrdude is. Would it (if I had it) be used in conjunction with (in the background of) the arduino environment??? I currently use Arduino Release 0023. ???? By the way, I'm using a previously burned fully operational atmega chip. I'm of the belief that one can just keep burning and keep burning and keep burning this bootloader out to any chip if one desires, regardless of the fact that the arduino system is already fully functional (as is the case here) ??? I don't know what the heck to do.