Getting ooTunes setup with your router could be as easy as doing
nothing and as hard as creating world peace. If you're reading this
you may have found it to be closer to the latter:
So first tip, follow the instructions for your specific router model
here:
http://portforward.com/english/routers/port_forwarding/routerindex.htm
Just choose the first program (ooTunes isn't listed yet) and anywhere
they specify a port (if you pick the first it will be 25) you want to
replace that with 1979.
They have most routers and usually this is enough for you modem
router.
Other things to know are the OS firewall (usually you make an
exception for the program but sometimes you may need to specify a
port, which again should be port 1979)
Finally some Antivirus software also has a firewall which will need a
port or application exception to be setup.
Sometimes it's easiest to turn each firewall so you can turn them back
on and find which one is blocking access.
Some of this info is here:
http://help.ootunes.com/firewallSetup.html
If you happen to have 2 or 3 different routers/modems/firewall,
perhaps the peace corps would be a better use of your time? It's
frustratingly tricky stuff!
Post specific questions problems here!