To change the color of the footer, change the color under this class:
#outerWrapper #footer in the common.css file.
The left menu is Spry driven, so you will need to update this class:
.AccordionPanelTab in the spry_custom.css fie.
The orders are stored in your database after you come back from Paypal, did you want to store the order before you go the paypal site?