Please help newbie - re assigned isp static ip setup

[lollylegs]

Hi Folks
I have searched and searched for simple answer to my question to no avail and then I came across your forum and by looking at some threads I think I may get the help I need.

What I want to do:
Is setup a webhosting service on my machine to host friends & families websites.

I have been assigned a static public ip 123.2.161.68 by my isp.

My question how to configure it - at the moment if I put that into the browser I get my router.

At the moment my Dlink 502T is set up DHCP.

I know how to setup static local and how to port forward, but when I deselect DHPC to make external ip static I can't connect to internet.

Another question which DNS servers do I use
ifconfig sample

internet address 10.1.1.2
Netmask 255.255.0.0
Gateway 10.1.1.1

OR

My Ip 123.2.161.68
or Prime DNS 123.2.6.197
Second DNS 122.148.1.5
Netmask 255.255.255.0
Gateway 123.2.25.1

What is worse I changed from windows to linux (which I love) but am still finding my way around the different file and directory system.

I would appreciate any help because I ran my ISP and as usual everything is outsourced and I could hardly understand a word he said and from the little I could he had no idea.

Regards
Marea (lollylegs)
Australia