Man, the way it works is if I ask a question about commands, you copy and paste exactly what was typed and what messages returned. If there is sensitive information just put *** instead. Otherwise we'll be here all day.
It is very simple. You go to the #bitcoin-otc and start a chat with gribble. Then you type:
Then you copy the link that gribble provides and paste it into your browser. Once the page opens, you copy everything.
Then you open command line and type
and press enter. Once the cursor is on the new line you paste what you copied from the page. At this point you may be prompted for password. Next you press Control-D to terminate input if on linux/mac. If on windows, press Enter, Control-Z, Enter to terminate input.
It will spit out a line like this:
freenode:#bitcoin-otc:5588cea3blahblahblah7e35e5d22e97080ee
Copy it and go to your conversation with gribble. Type ;;gpg everify paste_the_line_you_copied. Should look something like this
;;gpg everify freenode:#bitcoin-otc:5588cea3blahblahblah7e35e5d22e97080ee
And that's it. Be warned that there is time limit to preform authentication. If it takes you too long, the request will timeout and you'll have to do the whole thing again.
To get email associated with a public key you can go browse servers if it's uploaded there or you can import key and then do a long listing of keys
What OS are you running?