Go to the Metaverse and log in there.
http://metaverse.galciv2.com/
At the top of the screen, you'll see a list of options including Home, High Scores, Galactic Databank, Galactic Library, Account and Store.
Mouse over the Account option and a drop down menu will appear.
Click on Edit My Characters.
To the right of your characters, you'll see three options for each character. One of the options will be labled Default, although it'll be very dark if you don't have one selected.
Click on the Default option and it'll light up.
That character's medals and such will be displayed on your replies. I don't think they show up on the OP, though.
Edit - oops. I see that you've already done that. All is well in the MV. 