Network question

[cats007Miami]

I have 4 computers in the house. I wired them up to share my DSL. Can I 'network' all of them so I can share files using the same ethernet cards, cables and router that I'm using for the DSL, or do I need to add another card to each computer and more cables and another hub/router/switch?
I think there is a way to do both internet share and file share, am I right?
Can I do this with the existing setup?
Specs:
Westell 2200 DSL modem which has the dsl phoneline. This modem then is connected to Lynksis router. This router has 5 ports. 1 port goes to the main computer, port 2 goes to a location where there is a small hub. This hub takes dsl from the router and sends out 3 cables to 3 different computers.
The DSL is working fine on all computers.

I configured the tcp/ip to automatic on all machines.

Now what's my next step??

Thanx

[banished]

share you drives,
go to my computer right click on the drives and select share drive....
in xp to my network places andset up home or small office..
tada

[cats007Miami]

[quote name=\'banished\' date=\'Apr 26 2004, 10:37 PM\']share you drives,
go to my computer right click on the drives and select share drive....
in xp to my network places andset up home or small office..
tada[/quote]
 OK, I'll try that. It seems too easy, but what the heck.
Thanx