First, check the author's profile. I, and some others, have a clickable link to all the stories I have posted here.
If not listed on the profile, here's another way to do it, although it's still a bit clunky. Click on SEARCH button (between HELP and PROFILE) on the menu bar.
You have to type something in the first box (Search for:) or it will return an error. I just typed 'THE' in, figuring any story would have the word somewhere in it.
edit: Some authors (Meatbot for one) put their name in the story so it's worth a try to enter the user name in both fields in the top line.
Next, (in the box that says by user:) type the name of the author you want to look for. I used Meatbot as a test and got over 10 pages of results.
DON'T click 'Search' just yet.
First, UN-check the box that says 'Check all' then click the plus sign right above it. Put a check in each of the story forums you want to search (in the right column).
NOW you can click on 'Search' and you will get results.
You may end up getting some replies made by the user, but all the stories should be there as well.
Remmy