Connect Mac To Pc For Internet

I have for several years been running a wireless network from my desktop xp machine to 2 xp laptops. ...

I had my Mac and a PC both hard wired into an older linksys router and everything worked fine. ...

I was literally unplugging the cable from the hub, the one that goes to the Mac. ...

then i created a new one to try to gain access to the net...as this wouldn't work, i deleted the new one and switched back to the old one, which worked before. ...

I then tried to add my PC running XP to the network through the base station's ethernet port and the PC is having major problems. ...

This is my first post at this site. I have looked fairly extensively through the posts to try to find a solution to my problem but have not been succesful. ...

Being a complete noob to the Mac scene, I have an old iMac G3 333MHz which I have managed to install OS 10.3 on. It has 96Mb of RAM installed. I borrowed a 256Mb chip from a laptop to install the new OS which I think required 128Mb as a minimum. ...

and we have had NO success getting his computer to get the internet through the share. ...

I have a Dell laptop running Windows XP pro, it is connected through a ethernet hub to my mac. ...

I have a G4 Quicksilver hardwired to my Dlink wireless router. ...