Turning a router into a repeater

I'm trying to change a netgear wnr2000v2 into a repeater. The guy with geeksqaud(lol) said it coulb be done, but i'm not sure.

Plug any of the ports from your first router into that router's WAN port. Then make sure the operating mode of your new router is set to router instead of gateway. Make sure the settings of the wireless is the same as the other one.

Also try the Netgear support site if you still have problems.

Well, the second router needs to correct wirelessly to my current router.

Try looking in the configuration to see if there's a wireless repeater mode.

...How would I go about that?

Read the manual that came with it to find out. Each brand uses a different local IP so you have to check it. If you can't find your manual check the support site as it should have it in pdf form. Also reading the manual is a good idea if you have no idea what you are doing.