thanx Larry everything working now but one problem left now.
PC 2,3 and 4 see each other but PC 1 dont see them and neither other see it.
Network Configuration:this is how its listed<
Client for MS Network
DLink Network Adabper
Dialup Adapter
TCP/IP->Dlink Network adapter
TCP/IP-> Dial up Adapter
file and print sharing
when I click on the properties on D-Link DE220 ISA PnP Lan Adapter and click on properties all I see is Drivers and Bindings and no Advance Tab whereas on the other PC's there are 3 tabs Drivers, Bindings and Advance. Can U help Please