Ubuntu :: DNS Works Only Locally

I have tried to host a website at home (consider it a good option and learning experience). After using some Linux distros finally decided to stick with UBUNTU (10.10). Sadly everything was ok until the configuration of BIND9 finally failed.

I am nearly blind with most concepts of networking, my understanding is really basic and am guessing my problem is on that direction but really can not figure it out.

My set up is based on a guide found at [url] and have just changed the domain name so my configuration files are:

And for the reverse zone:

My resolv.conf file looks as follows:

With the last three lines being the IP of my ISP DNSs and declared in /etc/bind/named.conf.options as formwarders.

The output of named-checkzone arquibailleres.com is:

And:

When my BIND service is restarted its output log clearly states that the zones are added and indicates "sending notifies" yet by using dig and ping everything works nicely but when I try to connect to the site from an external computer my site simply is not recognised.

Ping output:

Dig output:

I have rented a static IP address, but still when looking for my global address I see: 201.130.192.159.

To me it looks like it is working, but I already mentioned that my understanding of that stuff is really poor, I have finally ran the "port scan tool" under System -> Administration -> Network Tools and it indicates that my port 53 is assigned to "domain" and open, also port 80 is open for www.