Need help with centering banners in templates

Hi, can anybody help me?

1. header tpl - I put there baner -´share´ but I don´t know how to put it in the center (now it is a little up)
2. footer tpl - in front of the Powered by OC I put banner but now the Powered ... is one line down.

You can see it on http://www.buythebest.eu

Thanks

solved.thanks