Hi, I'm an absolute newbie at this, so please be kind. I've just installed WordPress through my webhost, but now it's saying there is a new update. I downloaded the zip file to my desktop and extracted it, but now I don't know how to upload it to my dashboard (or wherever). I typed in /wp-admin/upgrade.php, thinking that would do it but it said I didn't need to upgrade. So are "upgrade" and "update" two different things? If so, how do I move the extracted files from my desktop to wherever it needs to go? Talk plain, please. I'll try very hard not to be a PITA, but I really want to get this right.
I found a theme I just love and want to incorporate it, but I don't know how to do that, either. I'm assuming that I follow the same process as the update, so once I learn how to do that, I should be able to do the theme, too. (I hope) Thanks for any help.