printerserver problems

The other day I bought a second hand Broadband Router with USB Printer
server without the manual.

Everything works fine (I can give the device an IP address in the range
of my LAN and configure it via a webbrowser)
One problem: I can't getting de printserver working and that was just
the reason why I bought the device.

I first installed de printerdriver locally on a USB port and that worked
fine.
Then I changed the port setting of the printer port to the IP address of
the printerserver (Standard TCP/IP Port)and the type of the port
"generic". That didn't work.

I can't find a setting of the printerserver in te setup via the
webbrowser of the device.

What do I do wrong and what is the solution to the problem?
Can anyone tell me where I can find a manual for this device? (I
searched the site of E-Tech, but found nothing there)

Configutation:
OS: XP SP2
Printer: HP LaserJet 1018
Printerserver: E-Tech model: RTPR02