How do I remove the salon spalogo at bottom?
Firebug says that the footer logo is defined around line 464 of template.css around the following code:
#s5_logo_small { background: url("../images/s5_logo_small.png");}
How do I remove "Unleash the power of" in the tab?
The site title in the browser tab is defined by the title of the page or most recent post. You will find a post titled "Unleash the power of the S5 Flex menu" in the "Posts" area of WP admin. Either rename to post title to what you want, or remove it and create a new post with the title you want showing on your home page.