Currency Display Issues

[CustomPowerDesigns]

I need to display the currency on my website. Right now it will display the currency, but if the item is set at .02 it will just show 2c. I would like it to say $0.02 instead. How would I accomplish this?

This is my code in config.php

'currency'               => 'USD',

And this is the price area for the auctions_controller.php

				// Formating the price
				$auction['Auction']['start_price'] 			 = $number->currency($auction['Auction']['start_price'], $this->appConfigurations['currency']);
				$auction['Auction']['savings']['price'] 	 = $number->currency($auction['Auction']['savings']['price'], $this->appConfigurations['App.currency']);
				$auction['Auction']['savings']['percentage'] = $number->toPercentage($auction['Auction']['savings']['percentage']);

[Nile]

Can't you use the money_format function? http://us3.php.net/manual/en/function.money-format.php

[CustomPowerDesigns]

No, I can't just use the money controller. Isn't there a way to set it in the Config File?