I have just downloaded the iphone version of dvd profiler for my iphone and I dont know how to set up the connections as the ip addresses Ive added dont connect. What ecaxtly do I add where it says host.

Any help would be greatly appreciated

The best tip I could give you would be to ask this question in the appropriate forum.  You'll get more help there than you will here simply because that is where people look for the iPhone / iPod / iPad help.  This section is for DVD Profile Mobile.  While the iOS version is technically a mobile version, DVD Profiler Mobile is a separate product for Windows devices.