Using SSH to allow Internet access

I don't know if this is the correct exchange to post this question, but i'll give it a try:

I have two hosts running on separate networks; A win7 machine and a linux machine. Firewalls on the win7 subnet does not allow access to Internet resources, but it allows access to the Linux machine, and the Linux machine has external access.

I have followed countless tutorials on how to do this, and all of them fail me.

Using PuTTY on the win7 machine, I do something similiar to the following:

ssh -D 4444 root@xxx.xxx.xxx.xxx

And inside of IE, I set proxy settings to 127.0.0.1:4444

This is where all tutorial and otherwise documentation on the subject that I have found, ends.

Now, what do I do on the Linux machine? I need to forward requests between the win7 client and the outside world.

Thanks.