Assuming your looking to go from Wireless->Laptop->Ethernet->Xbox
You will need to bridge the connection.
I have only ever done this for XP and i know it can be done in 7.
Perhaps try this: Bridge Network Connections in Windows 7
You will need to bridge the connection.
I have only ever done this for XP and i know it can be done in 7.
Perhaps try this: Bridge Network Connections in Windows 7