small PHP job(repost)

I have a Oscommerce site with PHP pages, I have three mods needed 1) On the customer account setup page I want to have a billing address and a shipping address on setup the database has this information as the cusomer can set a shipping address later when they check out but I want it at the point of setting up the account, with a check box if the shipping address is the same as the billing address 2) need a mod to the [login to view URL] to change the colour of the submenu 3) I have an image that I need to replace a formfield go button.