Problems connecting my Sony Vaio to wireless connection

Hi everybody.

I have a linksys WRT54G2 router that i recently bought. and i have this old laptop its from around 2004 if i remmebr right. its a sony vaio VGN-A130B, and im running windows xp professional vrsion 2002 service pack 1.

now the problem is i see all availbele wireless networks including my own, but when i choose mine and enter the network key (i believee its the network secturity key) and click connect nothing happens, it does not connect but it doesnt give me a message saying couldnt connect either....what should i do?

i was searching the internet and there was something about putting a service pack 2??? sorry guys im pretty new to this stuff please help me out.

do i have to configure my router or something? do i have to install some software on my laptop?

Thanks...

Installing SP2 solved the problem!