sorry - i meant a cheap router - im not so technically advanced!!
 
it's this modem, it's the router that won't work.
 
http://www.ambitbroadband.co.uk/Data...le%20Modem.pdf - modem we got.
 
http://www.tp-link.com/english/soft/2007731040544.pdf - router with instruction manual.
 
thanks for your help guys - i appreciate it!