Beginner… Upload

Hi friends,

I installed WordPress in my site, configured wp_config, etc., all are ok.

I am new in this blog(s), and I have few questions:

1. I see, in my site, a directory \wp_content (or similar). I uploaded one article, and he put in that directory.

2. The problem is that I need to upload (let’s say) 30 articles. If I use the FTP and put the 30 articles in the same directory, how to see?

3. How Google see (like a sitemap) the articles that I have in that directory. I klnow that do not have sitemap for blogs, but I know that google have a way to see that articles. How?

Sorry, but I am new and need your help in this (very) beginning.

Thanks!