What you can do to help you out is the next time you make a reply, click the link to Get More smilies, which will display them all. Somewhere in that window, right-click it and select the option to add it to your favorites. Then when you are making a journal entry, you can open another window and go to where you have the smilies list bookmarked.
if you don't know all the smilie codes, leave the smilie legend open for a while in a separate window till you get to know them all. that's what i did. it didn't take long till i knew what to type for all of them and it was just easier for me to start typing them in each time.