You didn't provide what netbook you got, but most netbooks today got built in SD-card readers. If your netbook does, the best solution is to remove the card from the camera and insert it into the netbooks card reader. The Canon G9 supports SD-cards, as well as SDHC, MMC, MMCplus and HC MMCplus compatible cards. I suggest using a SD or SDHC card.
You will not need to install canon software to access your pictures if you use the card reader, you will be able to access and copy/move them from the memory card in explorer (or equalent if you use Linux on your netbook). Also, it's a much faster way to move pictures from the camera to the computer, because the card reader interface is a lot faster than the USB interface to the camera.
If your netbook does not have an internal card reader, you could buy a SD card with built in USB, such as this one: http://www.cdrdvdrmedia.com/ultra-sd2-card-2gb-sandisk.html
This SD card behaves like a normal memory card in your camera, but plugs directly to an empty USB port on your netbook. The card will be accessable as any removable storage, in Explorer (or equalent if you use Linux).
A third solution would be to get a cheap USB 2.0 card reader. Almost any cheap USB 2.0 accepts SD cards, and would be a lot faster than connecting the camera to the netbook with a USB cable.
I hope this help you!