monitring

I Have 17 Pc in my cafe. 64 KBPS ADSL Connection. 15 IP and DNS are same, but two are different different. The computer are conected by switch. Two of my computer are not on networking i have WinXp OS . tell me, what i do for see my two computer on workgroup place. and tell how i can monitring...

I Have 17 Pc in my cafe and 64 kbps dsl connection 15 ip and dns are same but two are different different. the computer are conected by switch two of my computer are not on networking i have winxp os . tell me what i do for see my two computer on other computer. and tell how i can monitring all...