I uploaded many themes (as instructed) but i can not find them in administer theme. What could go wrong?

I have been looking at a variety of text editors to put on my site. I tried tinymce, but it was too complicated, it did funny things to the text, and was hard to manage. I looked at the bbcode bar, but I need to add buttons, and the code looked too complicated. The bbcode module had code but no buttons. Beyond my meager abilities to combine the two.

So quick tags looked nice. I want my users to make their own pages so they can get points in the userpoints module.

Hi, I'm quite new with Drupal so bare with me.

I have Drupal up n' running in my domain, let's call it 'www.example.com'. The content is still under development, so I can't publish it yet.

I get this message on the settings page for clean URLS:

Hi there.
I working on site where the user can choose between multi level categories (terms) to determine his content. What I like to do is to have a select field for top level categories and next to it - another select field with options dependent of the upon selected on top level. Think of it as choosing a country from the first list, and then select cities from the second.
Does taxonomy module support that?

Is it possible to select multiple different products at the same time and put on a cart in
Ecommerce 4.7? I do not see a facility like check boxes where shoppers can mark their selections and when they make final decision then they put many products on a cart at same time. This is just like in a real life scenario that you pick multiple products one after the other and finally putting many of them at same time on a cart.