Not able to connect to internet

I have Sony Vaio (vpceb14en) Laptop and it came with Windows 7 OS. I installed Redhat in it and the problem I am facing with is that I am not able to connect to the internet. I tried ifconfig but it is not showing any ethernet device there. Whereas in win 7 the internet is working fine. Also the linux is not supporting my laptop's sound card. How to overcome this problem?

PS: I tried Fedora 11 and Ubuntu 10 too, Still facing the same problem.

Please open a terminal and post the output of the following commands

Code:

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/sbin/lspci -vnn
/sbin/lsmod
/sbin/ifconfig -a
uname -a

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