FTP and HTTP General question

Hi,

i just wonder if you could explain to me how this works...

My internet provider allows me to have ~ 20Mb of Web space
(http://My_URL.com)
For that, I can connect via an FTP site... and reach my Http webpage with an
FTP software.... (ftp://homepages.......)

Now, if I am running CentOS... How can I do that ?

I declare in Apache something like :

<Virtual host *:80>
servername : <My_URL.com>
directory /home/<my_name)

- but how a FTP software can reach this page for upload ?

Thanks


.