Modification of the product page - default theme

[wbbz]

Hello,

How can we, as simply as possible, on a product page, have on the central area, the left part (picture, thumbnails…) and the right part (description, buy button…) inverted?
And, if possible, how can we put the “useful” part (Send to a friend AND Print) under the description, buy button…?

I've seen that it is in the template in product.tpl but it is not easy at all to modify. I certainly have to change the css too.

By the way, in product.tpl, #pb-right-column and #pb-left-column seem inverted (firebug seems to confirm this).

Thanks in advance