Image Thumbnails Center?

Anyone know how I can centre an the image gallery as seen on this page ?

http://css.maxdesign.com.au/floatutorial/tutorial0407.htm

Add up the widths of the images, plus the padding and/or margins then put them in a div equal to that width and use css to set that div to margin:auto; In that example each image plus margin and padding is 100px so times 3 thats 300px so if you put them in a 300px div and used margin:auto; it should work like you intend it to.

Thanks yea was thinking of doing that but thought there could be an easier way, anyhow it works! :)