Mac Leopard Internet Connect

My PC is connected to a modem router by ethernet cable, whilst my Mac is connect to the internet through Airport. ...

I am trying to connect my vista to the internet through sharing using the ethernet cable but I don't remember how to do it. ...

I also have a mobile internet connection for my notebook which connects to a cell phone tower and it has unlimited bandwidth. ...

PC and iMac. I want to connect this two computers by IPv6 protocol. Computers connected with patch cord. IPv4 working perfectly. ...

I have got an internet with telefonica in spain which is 3mb. ...

After doing this, I'm able to see the home page of my Computer's Website, but I can't connect to my Personal Website. ...

It seems at boot up my mac puts the feelers out and comes back unable to decipher a response. ...

I connect on a hotel and i can receive and cannot send emails from my mac mail program. This is very usual... ...

I don't think Leopard has the program Internet Connect anymore. ...

Okay, I'm kind of confused and hoping for some help. I have two machines in the office, a Mac and an XP Windows Machine. ...