mpic92

I have a linksys gateway and it's wireless coverage doesn't reach all parts of my house. Would buying an access point extend the network if I connect it to my gateway with an Ethernet cable running through my house? An ethernet cable connects into the back of the access point and then it's sending out a wirelesss signal? Also, will computers cnnected to the access point be on the same network as the gateway wireless. THey must be the same network right?

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New HP dv9000t Laptop:

Genuine Windows XP Professional
Intel(R) Core(TM) 2 Duo processor T7200 (2.0 GHz)
17.0" WSXGA+ BrightView Widescreen (1680x1050)
512MB NVIDIA(R) GeForce(R) Go 7600
2.0GB DDR2 SDRAM (2x1024MB)