not sure if this will help ,but might be worth a try .
firstly what operating sys are you using ?
i know that this works in vista ...not sure on xp .
browse the network for all devices in the workgroup .....(pcs,router ,printer)make a note of the path
if you are using vista then you will need to set up the port for the printer ...as you have already tried to do ..thing is vista will only accept a local port not a network port ,so its required to create a new port (local) then enter the path to it in the format
\\pc name\printer name.
as its a dedicated server you may only need the first
part i.e \\printer name....Dave.
ps ...if its xp then the same applies but you can use a network port .hope this helps ...Dave.