it won't let me upload at ALL
Ok. I think I know what's causing that. I'll look into it in a minute.
also what the heck is the board talking about where it says how many people are online. what's a spider?
A spider is a program used by search engines to browse and gather data from websites. So if you see "google", that means that Google is browsing the forum. If you see something like "Google (3)", that means that Google has three different programs browsing the site at once.