Problem with sidebar in the footer

Hello all,

I’m new to WordPress, currently using a child theme of Twenty-Ten.

I’ve gotten rid of the sidebar in the main section of my site by using (within style.css)

#main .widget-area ul {
display:none;
}
#main .widget-area ul ul {
display:none
}

However, on some of my pages I’m seeing widgets in the footer, which I’d also prefer not to have. I found this in the style.css:

/* Footer widget areas */
#footer-widget-area {
}

However, I don’t understand why there’s no content there; I tried the same “display:none” technique in the style.css of the child theme without any luck.

Similarly, I think I might have made a bad code change somewhere because on some of my pages there is the widget footer, whereas on other pages there is a normal footer. Can anyone look into this for me?
https://www.tinpanparadise.com

My last question would be how to replace the footer text which redirects to the homepage: it’s currently the title of the site (ie. Tin Pan Paradise) however I’d like it to say something else and I might also reroute it. I’m confused as to how to do this because the commands seem to be linked to get_bloginfo (in footer.php i believe) and screwing with anything beyond style.css or basic WP commands is a bit daunting for me.

Sorry if it’s a lot of questions at once, but they all seem interrelated. Any help is appreciated.