footer spacig

Hi,
I am using the GrideMarket Theme, i have added widgets to the bottom of the page, using footer 1 to 4, however the widgets are not spaced correctly and some such as the Facebook widget seem to be cut off in width. pls could you explain how to increase the width size of each footer space, and also how to have 1 widget on top of another, i would like to place the subscribe to newsletter widget above a rss feed, i place them in the same footer box, but they appear in different spaces on my webpage.
many thanks
rennae