The title of the gallery has to be changed in the Admin control panel = go to settings and you'll find out how
Don't know, what you mean with meta name, but if you'd like to enter some meta-tags, you can enter these
in the
header.html of your actually used template.
The templates are pure html... well, except the {} tags
You could even set some dynamicly generated meta-tags, but this would require some PHP knowledge.