New to vista - help pls with vista and xp network

> Hi
>
> I have just bought a notebook with vista ultimate 64bit on it. I have
> another 4 computers (3 notebooks and one desktop machine) on my network with
> XP pro on each machine. I normally have two of the notebooks wireless
> connected to my network using a d-link g604t modem router and the other
> machines use the lan connections.
>
> Up to today, my network has always been stable and each of the xp machines
> can see each other and have been able to for years. However now I cannot
> see the network from my new Vista machine - although I could for a short
> period of time today while I was trying to set up the vista machine.
>
> I have downloaded the link layer topology discovery responder and i have
> installed that on some of the xp machines as I have been told that is the
> way to get these machines to network, but i still see only my vista machine
> when i look at the network on it.
>
> I have turned on discovery, and sharing etc, and somehow I have managed to
> map one network drive from an xp mahcine to the vista machine. I have
> noticed that there has been a few minutes when the network was visible - and
> it appears to be different if i use the wireless or the lan connection.
>
> I have a static IP address for each of the network connections. I have
> removed the norton firewall and am using the windows one.
>
> Any guidance would be appreciated. I know that overtime i will get to like
> vista - but right now ..... urrgggg.
>
> Doug
>