Just an FYI, when you forget to add something to a post, you have a couple hours to edit it rather than making a new post.
As Krejt said, the urls.ini isnt important for mIRC to run, mIRC is installed (since you said you found it) you will just need to add the icon/shortcut onto your desktop manually.
If you are having a prob resolving host, in mIRC type: /help local info and double check your settings by those instructions.
You will need to be sure mcafee is allowing mIRC, and the servers ports used are generally 6660-6669,7000-7001 and 113. When connecting, be sure you are trying to connect to a currently linked specific server as they do change on a regular basis.
