You need a little more than that to get all the info SM777 needs.
What operating system is on the server? The info I have is good for Linux and FreeBSD, but I don't know about the rest.
'top' shows you a continually refreshing list of running processes, and shows the owner of each process. It also shows a summary of current processor and RAM usage.
'ps -ax' shows you the same process information, but spits it out once only, which is sometimes easier to deal with, since it lets you scroll back up and browse the data.
'dmesg' is possibly one of the most useful commands, since it shows the output of the computer's boot process, as it runs the hardware checklist, including processor, disks, network cards, etc... (most ISPs don't give users access to this command, though)
'df -h' shows you the amount of free disk space on every partition.
'w' shows you terminals of current users logged into either a remote telnet (or ssh) session or locally on the machine.
'users' simply lists the users currently logged into the machine
On FreeBSD, 'sysctl -a' gives extended data about the computer, including hardware, network status, etc...
'netstat -a' gives you info about your current network usage.
If you can see the contents of /etc/passwd or /etc/shadow, you can see if there are any other users on the system besides the standard root, ftp, bin, daemon, etc...
SM777 -- If you are supposed to have a dedicated box, have they given you root access?