Csaba (LittleBigThings)

The simplest way is to not to display them on the site. That can be achieved using CSS.

You can find more details on CSS here. You can add additional CSS code to your theme, the best way us by using child themes.

If you send the url of your website, I could give you the exact code.

Try simply the following CSS code:

.tags {
display: none;
}

Be sure to put it in your child theme’s style.css.

If you only edited the style.css of your blog, you should just create a child theme from the edited theme, and cut and past your edits in the child theme’s style.css.

You might also consider (re)creating your whole website using WordPress.

Ok, now I get it, go with the second suggestion (simple menu widgets)… ??

Of course. You can add two widgets and set different settings and titles using the same plugin.

You can use a plugin that provides a more cusomizable widget to display categories (see this example.
In the appropriate widget you can specifiy the categories to display.

It is the ad that should be sized to 100% to fit in the content area. I wouldn’t change the size of the content area.

You may use the class added to the body of your pages, for single page:

body.single {
background-image: url('image.png');
}

Or you might need the class singular instead of single (check this).

Do you mean by full width page a page that spans the whole screen/browser?

Be sure to define another page for your posts and your home page under settings/reading in the dashboard. Then create a custom menu under appearance/menu.

I am not sure that this helps but with the new version of WordPress (3.6) you can play audio files without using plugins.

1) What is polylang for responsive?

2) it should be there. Do you already have a second language? And a menu?

3) you can. Using CSS, but you should add larger icons to have them display nicely. I could get back to you on the exact place to put the flags. I think it is in wp-content/polylang (a new folder which you should create), but not sure, maybe someone can confirm (sorry, no acces to my sources at this moment).
I prefer using languages codes instead (en, fr, …). This is less confusing since English, Dutch, French, …are spoken in several countries. You can achieve this easily by adding them as icons the same way.

4) yes, using CSS. If you’re not familiar with it you should check out some online sources on it (like W3schools. Or you could post a link to your website for more detailed suggestions.

It depends a bit on your theme. Normally, you should be able to couple the correct pages in the 2 languages with polylang, which you did appearantly with the other pages.
Why no landing page for the EN version? That seems an easier solution.

You can check it here.

What do you mean by ‘bottom left’?

They seem to be left and near the bottom on your front page.