Search:

Yes that's correct, you will lose any customisations if you have edited the main theme files rather than used a child theme. You can find some useful info on child themes here:
...

Just add
#main-search { display: none; }
to your style.css

You could probably remove it for individual images in the html editor. I just got rid of it everywhere though;

.page article.page img {
padding: 0;
border: none;
background-color:...

I think the problem is that you didn't close the <a> tag.

1.You can control the menus from WordPress->appearance->menus.Also you can change the name of the pages from WordPress->Pages.It is not recommended to modify the theme's templates.The 0 you have is...

Go to Vantage->Custom Forms, click 'add new'.Give a name for the form and then click the 'text field'.Add the label 'email' (or anything else) and select the category you want this field to appear...