wont find infrastructure network (connect to domain)

Further to my last post, I am having problems with my access point

I can find it using my laptop (and connect and broswer network, internet,
etc..) using ADHOC
but when i try to connect using INFRASTRUCTURE, which is what I believe i
need to connect using pre-logon to the wireless network (connect to domain
upon logon (wireless))
it says the wireless can not be found????

I have tried with no security and with 64bit security just to see if that
made any difference upon setup but nothing...

Can anyone help - i need to get this working ASAP

I would appreciate any wireless tips or help!!!

Thanks,