Check to see if your port forwarding is working using this URL:

http://www.freewebproxy.net/

Enter your.ext.ip.add:9030 and you should get the following response:

The requested resource could not be loaded because the server returned an error:
  503 Directory unavailable (?).

If you get the following error instead, your forwarding is not working:

The requested resource could not be loaded. libcurl returned the error:
couldn't connect to host

Use this list to check against working relays:

http://torstatus.blutmagie.de/

I used the following tor router 85.25.145.98:9030 (randomly selected one with the default 9030 port in use):

with the above proxy and it got the "503 Directory unavailable" which is the correct response.