For the past 1 1/2 years (off and on) I have been trying to get my 1 internet computer that has a DSL connection to hook up to the network so I can share the DSL connection with one of the computers I have upstairs. Out of 5 computers, only one has a DSL internet access but it's not on the network. Everytime I have added another network card to that computer, the network works fine but then the DSL connection is lost for some reason. I have a Router but I can't seem to figure this thing out because the instructions don't help. I was wondering what the easiest effective way of putting the DSL computer on the network while leaving the connection intact and being able to share the speed with another computer.  If you can help, thank you. 
I forgot to mention that, the computer with the DSL connection is running WindowsXP Professional, my computer is running WinMe, another computer is running WinXP Professional, another one with WinXP Home, and one other with Win98SE.
			
			I forgot to mention that, the computer with the DSL connection is running WindowsXP Professional, my computer is running WinMe, another computer is running WinXP Professional, another one with WinXP Home, and one other with Win98SE.
				
		
			