Sorry to do this (User settings/posts question)

Go to quick links which is at the top just under guides. Then look through the options there.

 

For the record, you'll need 500 posts in order to have an avatar, if you didn't already know.

 

To change your settings go to the upper left corner, "User CP".

You will not be able to add an avatar until you reach 500 posts though.

To see a list of all your posts click your username in threads and select "find more posts by ___" <- you. Or in your profile.