You need to use your WAN IP address and port 9080 to access it. The WAN address is the address that your router gets from the ISP. You should be able to look at your router config to see the IP. It wouldn't be anything starting with 192.168.x.x (those are LAN IPs).
Alternatively, to make things easier, you could setup DDNS on your router. There are a few different sites that let you setup a DDNS account. The one I use is
http://www.dyndns.com and it works very well. You can chose your domain name from a list of possible domains. So, you could set your domain name to be something like romell.gotdns.com and you would access it by putting this in your browser:
Code:
http://romell.gotdns.com:9080/
Setting up DDNS isn't too hard. You just sign up for the account on the site, then go to your router config in the DDNS section and select that you want to use DynDNS and add your username and password that you created on the dyndns site.
The benefits of doing this is because most ISPs give out dynamic IPs, so they could change at any time (even though most don't change too often these days). If the IP changes and you don't know the new IP, you wouldn't be able to reach your PC from remote locations. But, with DynDNS, your router tells the site anytime your IP changes, so it always knows what to direct your domain name to.