Asistance in creating a public IIS Server

I have a local IIS server on my machine running Windows 7. I want to make this publc via IP address. I have purchased a DynDNS pro to have the ability to maintain static IP. I don't know how to make my local computer public and need assistance on this. This should be relatively easy for a network administrator expert ## Deliverables * * *This broadcast message was sent to all bidders on Sunday May 6, 2012 11:30:09 AM: Ok there is a change in the project, I managed to access my local computer from outside but I have a different problem. I am trying Microstrategy and it uses Windows authentication to log on, this works if i use localhost but when i log in via myh IP address the login screen comes but i am unable to log on. I need help on this so let me know if you can help