Dangit!! Missed this training opportunity

Although I am pretty much up and running with the basics,
but now attempting to get a TNC-X up and running for Winlink
email with difficulties.? Looking in the chat window I do see packets
come in and get decoded.? Just can't get mail out and I do have
a Winlink account, using the prefix WL2K:? Has to be someting
dumb.
73
ron