Get a Google ad sense account and an amazon affiliate account. Goto "earnings" in "my account". You'll see the two modes by which you can make money using hub pages. Set those accounts with hubpages and start writing artilcles and setup amazon products at the side bar. Publish those articles and drive traffic to your hub. People will come and read your articles as well as buy your products and click on google ads that flash while they are reading your hubs and you make commission on every click and sale your visitors make.
Put up links to your hub everywhere you know like facebook, orkut, twitter, myspace, etc. OR any bookmarking site like delicious, digg, etc or put up links on public forums asking people to read what you wrote and this will drive a lot of traffic to your hub and hence you'll make money.