Servers and routers

The top most looks more like a router than a switch, as you can see from the bottom one, rackmounted switches and hubs have a distinct look, leds for every port and a series of ports according to the leds.

As for the ftp, I'd recommend that you think about having an external filesharing host, many web hosts have this kind of service where they have a web interface for creating accounts and all that bling bling, besides if you don't have a solid security pro in your office, it is extremely risky to do this kind of work.

I'm just assuming that those servers you have there, are set up by some professional and not someone in the office

There is no telling what the servers do jut by looking at them outside, our servers here where I work, are just for office datasharing and storaging, but it could run a database server, web server, ftp and whatnot. My Linux machine here in my office runs tons of programs, like SSH server, web server, MySQL and few other programs to handle bluetooth connection and such, and to monitor the network traffic. It's a jack of all trades.

probably the top. But is there 2 there?

lol my dad works in a data center that has rooms and rooms full of racks with this stuff (whats the fiber doin down there?)

At the very top, that's a D-Link router.

Below that is a... looks like 16 port switch with two empty link ports.

Below that is a series of Sun appliance servers, not sure why they're using one as a firewall, guess they like software versions better than hardware.

All the way at the bottom is another 16 port switch, not sure why they couldn't just upgrade to a 40 port, guess they use the top one for server traffic and the bottom for local traffic.

The last thing is a fiber optic switch, probably being used for high speed uplinks between departments. However, only one port is actually being used, which is rather peculiar...