Internet conection problem

I finally got Win 7 installed and now i am having problems connecting to the internet. I am using a wireless g connection no security at all (not my choice) i am able to connect to the network but it tells me their is no connection to the internet and their is a yellow triangle by the connection status.

I am dual booting win7 and XP now and the connection works fine on XP. The wireless adapter is a trend net TEW-423PI i could not find any win 7 drivers so i used visa ones.

I'm sorry if this is a repeat of another thread i read sevral other threads and the solutions didn't seem to apply.

If you have any other questions let me know any help will be greatly appreciated.

Set a static ip for the adapter.

Im still having trouble either Im doing it wrong or its not working, any suggestions?

Boot to XP. From command prompt:

ipconfig /all

Write down the info or make a screenshot of it and print it.

Use it to set static ip in 7.

Do you have the Bonjour service installed? If so, stop the service and uninstall it.