how to make belkin n wireless router f5d8236-4 v2 a repeater for MTNL beetel 450tc1

Hi guys,
Am a complete noob as far as networking goes!
I just changed my broadband service to MTNL (beetel 450tc1 wireless router) and am quite happy with the speeds.(1 mbps unlimited with night 2mbps)
i had a spare router (the belkin n150) from my old connection and i have read that i can use this to amplify my wifi signal in the house.
I use windows xp.
i get the beetel signal in my bedroom but it is very weak (three walls but a realtively open space) and i thought of using the belkin router to amplify the signal. i want to place the belin in my drawing room
can anyone help how i can achieve the same?
if you need any additional details about the setup please ask...
thanks in advance
aj

See picture. (62 KB) file size

What is the distance involved between Bedrooom and Hall?
It is not possible to link them in wifi mode. ( WDM or WDS or WIFI repeater mode ) without any wires.

Connect Beetel450TCI in "Always on" PPPoE Mode.
Enable DHCP. ( Keep 450TCI at a higher height and parallel to ground. rotate for max signals in the Hall.
( Both Units can be positioned in same Bedroom and check reception.)

Connect a RJ45 cable from Beetel450TC1 Lan port to Internet port of Belkins. etc.
2.
If you have Windows 7 OS confirm
, and number of laptops/cell phones used.
More on feedback.