As I can see is one of your first ots... right?
OK... I highly recommend to start OT Servers with XML and then learn SQL and that...
XML it's easyier....
Just open port 7171 in your router.
Then the IP that gave you the router, thats the IP you'll need for the OT, in the section... ip="Your IP"
And then it's ready...
And with the MySQL things, dont move If you dont want to mess with that...
Dont try to enter in your OT with your Local IP-Address, that IP always login in your OT, try the Global IP, if it works, now you can add the server to OT Serv List...