@JenniferC: Thanks for your appreciation and sorry for the late reply as we are still in state of emergency due to massive earthquake in Nepal. Internet and electricity is huge problem and I am still in shock.
1. First, after you change the theme. I suggest you to regenerate the thumbnail using Regenerate Thumbnail plugin (http://wordpress.org/extend/plugins/regenerate-thumbnails) as suggested in our theme instructions page at http://catchthemes.com/theme-instructions/catch-box/. This will make your featured image in homepage size of 644px width and 320px height. So, you don’t have to make it center. Yes, for smaller image then this, you can add the following css in “Appearance => Theme Options => Custom CSS” box:
#content .entry-summary img {
display: block;
margin: 0 auto;
}
2. I can see hello bar in your site. I see that you have W3 total Cache plugin installed. So, whenever you make any major change, you need to clear your cache from W3 total Cache plugin settings. About adding code in Footer.php, we don’t recommend to change/add any files inside core theme catch-box folder. As all these edits will be reverted back to original when you update or upgrade the theme. So, if you need to add or edit any code in core then you need to buid child theme and add it. For child theme check out http://catchthemes.com/blog/create-child-theme-wordpress/.
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