hosting readiness
 

After installing the system as per the instructions at http://www.howtoforge.com/perfect-se...ispconfig-3-p4 am I now set up to use my dydns.org service (dynamic ip's) and start hosting?

Ubuntu 8.10, WRTG3G wireless router, ISPCONFIG3 "Perfect Server" setup.

Yes. If there would be additional steps nescessary to install ispconfig they would have been listed in the tutorial.

But you should be aware that you can not run a real mail server on a dynamic IP as all majore emails servers like yahoo, hotmail etc. will block emails that come from a dynamic IP. The only workaround for this is to relay emails trogh a third party server with fixed IP, you wll find a tutorial for this here on howtoforge.